| Type | Region | Begin Date | End Date | Description | Format |
|---|
| History | CA | 1513 | 1850 |  Illustrated history of Plumas, Lassen & Sierra Counties : with California from 1513 to 1850. | Online |
| Family | | 1530 | 1850 |  Vicissitudes of an Anglo-Irish family, 1530-1850 : a story of Irish romance and tragedy | Online |
| World | | 1550 | 1850 |  Scots in Poland, Russia and the Baltic States, 1550-1850 | Online |
| Vital | | 1600 | 1850 | Scottish Maritime Records, 1600-1850 | Online |
| World | UK | 1623 | 1850 | Ships from Ireland to Early America, 1623-1850. Vol. II | Online |
| Vital | MA | 1633 | 1850 | Massachusetts Marriages, 1633-1850 | Online |
| Vital | MA | 1635 | 1850 | Concord, Massachusetts : births, marriages, and deaths, 1635-1850 | Online |
| Vital | RI | 1636 | 1850 | Vital record of Rhode Island, 1636-1850, first series, births, marriages and deaths : a family register for the people | Online |
| Vital | VA | 1639 | 1850 | Virginia Land, Marriage, and Probate Records, 1639-1850 | Online |
| Vital | VA | 1639 | 1850 |  Virginia Land, Marriage, and Probate Records, 1639-1850 | CD |
| Vital | MA | 1643 | 1850 | The birth, marriage, and death register, church records and epitaphs of Lancaster, Massachusetts : 1643-1850 | Online |
| Vital | MA | 1649 | 1850 | Births, marriages and deaths in the town of Malden, Massachusetts, 1649-1850 | Online |
| Family | NJ | 1650 | 1850 |  Clayton families of New Jersey & eastern U.S., 1650-1850 : a preliminary study, being a collection of carbon copies of letters | Online |
| Vital | MD | 1655 | 1850 |  Maryland Marriage Index, 1655-1850 | CD |
| Vital | MD | 1655 | 1850 | Maryland Marriages, 1655-1850 | Online |
| Vital | NY | 1662 | 1850 | Index of wills for New York County (New York City) from 1662-1850 | Online |
| Vital | NC | 1663 | 1850 | Abstracts of Wills and Other Records, Currituck and Dare Counties, North Carolina (1663-1850) | Online |
| Vital | PA | 1684 | 1850 | Index of Bucks County, Pennsylvania, wills and administration records, 1684 to 1850 | Online |
| Vital | PA | 1713 | 1850 | Index to Chester County, Pennsylvania wills and intestate records, 1713-1850 | Online |
| Vital | NY | 1726 | 1850 | Purchase, Westchester County, New York, monthly meeting of Friends : intentions of marriage, 1726-1850 / [transcribed by] Willi | Online |
| History | PA | 1729 | 1850 | An index to the will books and intestate records of Lancaster County, Pennsylvania, 1729-1850 : with an historical sketch and c | Online |
| Vital | PA | 1729 | 1850 | Lancaster, Pennsylvania Probate Index, 1729-1850 | Online |
| Vital | VA | 1740 | 1850 | Virginia Marriages, 1740-1850 | Online |
| Vital | PA | 1752 | 1850 | Index of Berks County, Pennsylvania, wills and administration records, 1752-1850 | Online |
| Other | | 1760 | 1850 | The commercial empire of the St. Lawrence, 1760-1850 | Online |
| Family | | 1762 | 1850 | Spencer Records, 1762-1850 and his descendants | Online |
| Family | | 1762 | 1850 | The American ancestors and descendants of Seth Kelly, 1762-1850, of Blackstone, Mass. | Online |
| Vital | VA | 1762 | 1850 | Loudoun County, Virginia Marriage Bonds, 1762-1850 | Online |
| Family | | 1764 | 1850 | Merrill genealogy : descendants of Barzilla Merrill, 1764-1850. | Online |
| Family | NY | 1768 | 1850 | Ancestors and descendants of Robert Brown of Madison County, N.Y. : 1768-1850 | Online |
| Vital | | 1772 | 1850 | Shenandoah County Marriage Bonds, 1772-1850 | Online |
| Other | | 1783 | 1850 | South Carolina Naturalizations 1783-1850 | Online |
| Vital | PA | 1784 | 1850 | Index of wills & estate settlements, Montgomery County, Pennsylvania, 1784-1850 | Online |
| Vital | NY | 1791 | 1850 | Abstracts of wills of Rensselaer County, New York : in the office of the Surrogate at Troy, New York, 1791-1850 | Online |
| Vital | NY | 1792 | 1850 | Index of wills of Otsego County, New York, from 1792-1850 | Online |
| Other | | 1795 | 1850 | The Alma story, 1795-1850 | Online |
| Other | | 1795 | 1850 | The Willing story, 1795-1850 | Online |
| Vital | KY | 1795 | 1850 | Northern Kentucky Marriages, 1795-1850 | Online |
| Vital | NY | 1797 | 1850 | Index of wills of Chenango County, New York, from 1797-1850 | Online |
| Other | NY | 1799 | 1850 | A bibliography of books, pamphlets, and broadsides printed at Canandaigua, New York, 1799-1850 | Online |
| Family | TN | 1799 | 1850 | The family of William Burress (ca. 1799-1850?) of Tennessee | Online |
| Immigration | | 1800 | 1850 | Philadelphia, 1800-1850 Passenger and Immigration Lists | Online |
| Other | NY | 1800 | 1850 | A bibliography of books and pamphlets printed at Geneva, N.Y., 1800-1850 | Online |
| Vital | OH | 1800 | 1850 | Marriage records of Clermont County, Ohio, 1800-1850 | Online |
| Vital | KY | 1802 | 1850 | Kentucky Marriages, 1802-1850 | Online |
| Immigrant | | 1803 | 1850 | An Alphabetical Index to Ulster Emigrants to Philadelphia, 1803-1850 | Online |
| Other | | 1807 | 1850 | The Wellsville story : pioneer days, 1807-1850 | Online |
| Vital | NY | 1809 | 1850 | 10,000 Vital Records of Western New York, 1809-1850 | Online |
| Other | NY | 1810 | 1850 | A bibliography of books, pamphlets and broadsides printed at Auburn, N.Y., 1810-1850 | Online |
| Vital | OH | 1810 | 1850 | Preble County, Ohio Common Pleas Court Records 1810-1850 | Online |
| Vital | NY | 1813 | 1850 | 10,000 Vital Records of Central New York, 1813-1850 | Online |
| Vital | KY | 1817 | 1850 | Montgomery County, Kentucky Marriage Records, 1817-50 | Online |
| Other | | 1819 | 1850 | Rochester imprints, 1819-1850 : in libraries outside of Rochester, an informal checklist | Online |
| Other | NY | 1820 | 1850 | A bibliography of books and pamphlets printed at Ithaca, N.Y., 1820-1850 | Online |
| Immigration | NY | 1820 | 1850 | New York, 1820-1850 Passenger and Immigration Lists | Online |
| Immigration | NY | 1820 | 1850 | Passenger and Immigration: New York, 1820-1850 | CD |
| Immigration | | 1821 | 1850 | Boston, 1821-1850 Passenger and Immigration Lists | Online |
| Vital | FL | 1822 | 1850 | Florida Marriages, 1822-1850 | Online |
| Other | | 1825 | 1850 | The passing of the frontier, 1825-1850 | Online |
| Vital | DC, WA | 1826 | 1850 | Washington, D.C. Marriages, 1826-50 | Online |
| Vital | MS | 1826 | 1850 | Mississippi Marriages, 1826-50 | Online |
| Other | IL | 1830 | 1850 | The settlement of Illinois from 1830 to 1850 | Online |
| Other | | 1834 | 1850 | Recollections of the old borough of Chester from 1834 to 1850 : of the streets, houses, places of business, inhabitants, and ge | Online |
| Vital | NY | 1836 | 1850 | Abstracts of wills of Chemung County, N.Y. : from 1836 to 1850 : typescript, | Online |
| Vital | | 1837 | 1850 | Index to Marriages and Deaths in the Baltimore Sun 1837-1850 | Online |
| Family | | 1847 | 1850 | History of the William Snow and Robert Gardner families : pioneers of 1847 and 1850 | Online |
| Other | UT | 1847 | 1850 | Sons of Utah Pioneers - Card Index, 1847-50 | Online |
| Other | UT | 1847 | 1850 | Utah Pioneers, 1847-50 | Online |
| Other | | 1849 | 1850 | Daniel Woods, Sixteen Months in California, 1849-50 | Online |
| Other | | 1849 | 1850 | Dr. William McCollum, Trips to California, 1849-50 | Online |
| Other | | 1849 | 1850 | William Kelly, Excursion to California, Vol. 2, 1849-1850 | Online |
| Other | | 1850 | | 1850 Slave Schedules | Online |
| Census | | 1850 | | 1850 U.S. Federal Census - Slave Schedules | Online |
| Census | | 1850 | | 1850 United States Federal Census | Online |
| Church | | 1850 | | A centennial discourse delivered September 9, 1850 before the First Church and Society in Athol : at the celebration of the one | Online |
| Church | | 1850 | | A centennial discourse delivered September 9, 1850, before the First Church and Society in Athol : at the celebration of the on | Online |
| Other | | 1850 | | Address delivered before the Literary Association, Blandford, Mass., Sept. 21, 1850 | Online |
| Cemetery | | 1850 | | An address delivered at the consecration of the Pine Grove Cemetery, July 24, 1850 | Online |
| Cemetery | | 1850 | | An address delivered on Sunday evening, July 7th, 1850 at the consecration of the River-side Cemetery in Fairhaven, Mass. | Online |
| Directory | | 1850 | |  Cheshire 1850 Bagshaw Directory (on CD) | CD |
| Immigration | | 1850 | | Colonial Land and Emigration Commissioners Report 1850 (on CD) | CD |
| Other | | 1850 | | Gloucester County residents, 1850 | Online |
| Other | | 1850 | | Hinton Helper, Life in California, 1850s | Online |
| History | | 1850 | | Historical discourse, delivered before the First Church and Society of Windham, Conn., December 10th, 1850 | Online |
| Military | | 1850 | | Horace Bell, Reminiscences, 1850s | Online |
| Other | | 1850 | | Irish Settlers in North America before 1850 | Online |
| Other | | 1850 | | James Abbey, A Trip Across the Plains, 1850 | Online |
| Other | | 1850 | | Joseph Heco, From Japan to California, 1850, Part 2 | Online |
| Other | | 1850 | | Niagara Falls guide-books prior to 1850 | Online |
| Other | | 1850 | | Pamphlets and books printed in Buffalo prior to 1850 : being a supplement to the list compiled by Dr. F.H. Severance and publis | Online |
| Other | | 1850 | | Stephen Field, Practicing Law in California, 1850 | Online |
| Family | | 1850 | | The genealogy of Frothingham in New England, 1850 | Online |
| Directory | | 1850 | | Warwickshire 1850 White's Directory (on CD) | CD |
| Other | | 1850 | | Worcester in 1850 | Online |
| Other | | 1850 | 1851 | Lopez's expeditions to Cuba, 1850 and 1851 | Online |
| Immigration | | 1850 | 1851 | San Francisco Ship Passenger Lists Vol. II [1850-1851] | Online |
| Other | | 1850 | 1854 | Stephen Davis, Gold Rush Merchant, 1850-1854 | Online |
| Church | | 1850 | 1860 | James Woods, Church Work in California, 1850-60 | Online |
| Other | | 1850 | 1860 | Nativism in the Old Northwest, 1850-1860 | Online |
| History | | 1850 | 1862 | The history of the first pastorate of the Howard Presbyterian Church, San Francisco, California, 1850-1862 | Online |
| Immigration | | 1850 | 1864 | San Francisco Ship Passenger Lists Vol. I [1850-1864] | Online |
| Other | | 1850 | 1864 | The diary of Orville Hickman Browning. : 1850-1864 | Online |
| Other | | 1850 | 1865 | Evansville's channels of trade and the secession movement : 1850-1865 | Online |
| Military | | 1850 | 1873 | The Civil War era, 1850-1873 | Online |
| Immigration | | 1850 | 1874 | Passenger and Immigration Lists: Germans to America, 1850-1874 | CD |
| Census | | 1850 | 1880 | U.S. Federal Census Mortality Schedules, 1850-1880 | Online |
| Other | | 1850 | 1890 | Men and events of forty years : autobiographical reminiscences of an active career from 1850 to 1890 | Online |
| Cemetery | | 1850 | 1908 | St. Louis City Death Records, 1850-1908 | Online |
| Other | | 1850 | 1920 | Rochester Theological Seminary general catalogue 1850 to 1920 | Online |
| History | | 1850 | 1926 | The history of the Baptists of Greensboro, N. C., 1850-1926 | Online |
| Immigration | | 1850 | 1934 | Hamburg Passenger Lists, 1850-1934 | Online |
| Other | | 1850 | 2000 | African American Photo Collection, 1850-2000 | Online |
| Family | | 1850 | 2000 | U.S. Family Photo Collection, c. 1850-2000 | Online |
| Census | AL | 1850 | | Autauga County, Alabama 1850 census | Online |
| Vital | AR, KS | 1850 | | Arkansas Marriages to 1850 | Online |
| World | Australia | 1850 | | New South Wales Government Gazette 1850 (on CD) | CD |
| Other | CA | 1850 | | Bayard Taylor, California Correspondence, 1850 | Online |
| Census | CA | 1850 | | Los Angeles City and County Census, 1850 | Online |
| Census | CA | 1850 | 1860 | Monterey, California Census, 1850-60 | Online |
| Vital | CA | 1850 | 1877 | California Marriages, 1850-1877 | Online |
| Census | CA | 1850 | 1880 | Whiteside(s) names listed in California censuses for selected counties, 1850-1880 | Online |
| Other | CA | 1850 | 1900 | Yuba County, California History, 1850-1900 | Online |
| Vital | CT | 1850 | | Connecticut Marriages to 1850 | Online |
| Other | GA | 1850 | | Georgia and the Union in 1850 | Online |
| Vital | GA | 1850 | | Georgia Marriages to 1850 | Online |
| History | GA | 1850 | 1881 | History of the State of Georgia, 1850-1881 | Online |
| Vital | IA | 1850 | | Iowa Marriages to 1850 | Online |
| Vital | IL | 1850 | | Illinois Marriages to 1850 | Online |
| Vital | IN | 1850 | | Indiana Marriages to 1850 | Online |
| Vital | IN | 1850 | 1920 | Jasper County, Indiana Marriages, 1850-1920 | Online |
| Census | KS | 1850 | 1890 | Kansas Census, 1850-90 | Online |
| Other | KY | 1850 | | The anti-slavery movement in Kentucky, prior to 1850 | Online |
| Vital | LA | 1850 | | Louisiana Marriages to 1850 | Online |
| Vital | MA | 1850 | | Arlington, Massachusetts Vital Records to 1850 | Online |
| Vital | MA | 1850 | | Bradford Massachusetts Vital Records to 1850 | Online |
| Other | MA | 1850 | | D.B. Bates, Trip from Massachusetts to California, 1850 | Online |
| Vital | MA | 1850 | | Danvers, Essex County, Massachusetts Births to 1850 | Online |
| Vital | MA | 1850 | | Essex County, Massachusetts Birth Records to 1850: Newburyport | Online |
| Vital | MA | 1850 | | Essex County, Massachusetts Death Records to 1850: Newburyport | Online |
| Vital | MA | 1850 | | Essex County, Massachusetts Marriages to 1850: Newburyport | Online |
| Vital | MA | 1850 | | Hopkinton, Massachusetts Vital Records to the Year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Abington, Massachusetts to the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Acton, Massachusetts to the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Arlington, Massachusetts to the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Ashfield, Massachusetts to the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Becket, Massachusetts to the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Bedford, Massachusetts to the end of the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Bellingham, Massachusetts to the end of the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Boxborough, Massachusetts to the end of the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Bridgewater, Massachusetts to the end of the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Brimfield, Massachusetts to the end of the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Brockton, Massachusetts to the end of the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Burlington, Massachusetts to the end of the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Cambridge, Massachusetts, to the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Carver, Massachusetts to the end of the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Charlemont, Massachusetts to the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Chester, Massachusetts to the end of the year 1850. | Online |
| Vital | MA | 1850 | | Vital records of Chilmark, Massachusetts to the end of the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Dalton, Massachusetts to the end of the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Dana, Massachusetts to the end of the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Dartmouth, Massachusetts to the end of the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Deerfield, Massachusetts to the end of the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Dover, Massachusetts to the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Dracut, Massachusetts to the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Edgartown, Massachusetts to the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Framingham, Massachusetts to the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Gill, Massachusetts, to the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Granville, Massachusetts to the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Great Barrington, Massachusetts to the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Greenfield, Massachusetts to the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Hanson, Massachusetts to the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Hardwick, Massachusetts, to the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Harvard, Massachusetts to the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Heath, Massachusetts to the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Hinsdale, Massachusetts to the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Holliston, Massachusetts to the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Hull, Massachusetts to the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Kingston, Massachusetts, to the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Lincoln, Massachusetts to the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Medford, Massachusetts to the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Medway, Massachusetts to the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Mendon, Massachusetts to the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Middlefield, Massachusetts to the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Milford, Massachusetts to the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Montgomery, Massachusetts to the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Nantucket, Massachusetts to the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of New Ashford, Massachusetts to the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of New Bedford, Massachusetts to the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of New Braintree, Massachusetts to the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Newton, Massachusetts to the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Northborough, Massachusetts to the end of the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Norton, Massachusetts to the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Otis, Massachusetts, to the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Pelham, Massachusetts to the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Pembroke, Massachusetts to the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Plympton, Massachusetts to the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Reading, Massachusetts, to the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Richmond, Massachusetts to the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Rochester, Massachusetts to the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Scituate, Massachusetts to the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Sharon, Massachusetts, to the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Sturbridge, Massachusetts to the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Taunton, Massachusetts to the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of the Town of Auburn, (formally Ward), Massachusetts to the end of the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of the town of Boylston, Massachusetts to the end of the year 1850 | Online |
| Vital | MA | 1850 | | Vital Records of the Town of Fairhaven, Massachusetts to 1850 | Online |
| Vital | MA | 1850 | | Vital records of Tyringham, Massachusetts to the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Uxbridge, Massachusetts, to the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Wakefield, Massachusetts, to the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Wayland, Massachusetts, to the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of West Springfield, Massachusetts to the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of West Stockbridge, Massachusetts, to the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Westport, Massachusetts to the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Weymouth, Massachusetts, to the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Williamstown, Massachusetts, to the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Windsor, Massachusetts, to the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Worthington, Massachusetts to the year 1850 | Online |
| Vital | MA | 1850 | | Vital records of Wrentham, Massachusetts to the year 1850 | Online |
| Vital | MA, WA | 1850 | | Vital records of Washington, Massachusetts to the year 1850 | Online |
| Vital | MI | 1850 | | Michigan Marriages to 1850 | Online |
| Vital | MO | 1850 | | Missouri Marriages to 1850 | Online |
| Vital | MO | 1850 | 1860 | Missouri Mortality Records, 1850 and 1860 | Online |
| History | NY | 1850 | | A history of the churches of all denominations in the city of New York : from the first settlement to the year 1850 | Online |
| Immigration | NY | 1850 | 1883 | New York Emigrant Savings Bank, 1850-1883 | Online |
| Immigration | NY | 1850 | 1891 | Passenger Lists: New York (13 Disc Set) 1850-1891 | CD |
| Church | NY | 1850 | 1940 | St. Luke's Lutheran Church : in the city of New York, 1850-1940. | Online |
| Other | OR | 1850 | | Early Oregon : jottings of personal recollections of a pioneer of 1850 | Online |
| Census | OR | 1850 | | Oregon Territory Census, 1850 | Online |
| Family | OR | 1850 | | Pioneer families of the Oregon Territory, 1850 | Online |
| Census | PA | 1850 | | 1850 census, East Vincent Township, Chester County, Pennsylvania | Online |
| Church | PA | 1850 | 1950 | One hundredth anniversary of Salem Lutheran Church in Bethlehem, Pennsylvania, 1850-1950 | Online |
| Other | RI | 1850 | | Sketches of Rhode Island physicians : deceased prior to 1850 | Online |
| Census | SC | 1850 | | Free Blacks and Mulattos in South Carolina 1850 Census | Online |
| Vital | TN | 1850 | 1870 | Dickson County, Tennessee Marriages, 1850-70 | Online |
| Census | UT | 1850 | 1890 | Utah Census, 1850-90 | Online |
| Census | VA | 1850 | | Census returns of Lewis County (West) Virginia for 1850 : copied from the original federal census records in the Census Bureau, | Online |
| Census | VA | 1850 | | The seventh population census of the United States for Russell County, Virginia, 1850 | Online |
| Census | WA | 1850 | 1890 | Washington Census, 1850-90 | Online |
| Church | | 1871 | 1850 | Anniversary exercises commemorating the 187th anniversary of the church, and the 150th of the precinct : held in the First Pari | Online |
| Other | | 1886 | 1850 | Toronto 'called back,' from 1886 to 1850 : its wonderful growth and progress, especially as an importing centre, with the devel | Online |
