| Type | Region | Begin Date | End Date | Description | Format |
|---|
| Family | | 1100 | 1900 |  History of the Hayford family, 1100-1900, with biographical sketches and illustrations, its connections by the Bonney, Fuller a | Online |
| Other | | 1261 | 1900 | Cambridge University Alumni, 1261-1900 | Online |
| Other | | 1276 | 1900 |  Cripplegate Ward, London Aldermen, 1276-1900 | Online |
| Immigration | | 1500 | 1900 |  Passenger and Immigration Lists Index, 1500s-1900s | Online |
| Other | | 1500 | 1900 |  Somerset Roll of Worthies, Unworthies, and Villains, c. 1500-1900 | Online |
| Family | ME | 1530 | 1900 | From 1530 to 1900. Complete lineage of the Sturges families of Maine | Online |
| Family | | 1560 | 1900 | U.S. and International Marriage Records, 1560-1900 | Online |
| Vital | | 1600 | 1900 | Canadian Genealogy Index, 1600s-1900s | Online |
| Family | | 1600 | 1900 |  Canadian Genealogy Index, 1600s-1900s | CD |
| Family | | 1620 | 1900 | Our New England ancestors and their descendants, 1620-1900 | Online |
| Vital | MD | 1633 | 1900 | General index of wills of St. Mary's County, Maryland, 1633-1900 | Online |
| Family | | 1635 | 1900 | A genealogical history of Robert Adams, of Newbury, Mass. : and his descendants, 1635-1900 | Online |
| Family | | 1635 | 1900 | A genealogical history of the Chappell, Dickie, and other kindred families of Virginia, 1635-1900 | Online |
| Family | | 1635 | 1900 | A history of the Castle family : from 1635 to 1900 | Online |
| Family | | 1636 | 1900 | The Ipswich Emersons, A.D. 1636-1900 : a genealogy of the descendants of Thomas Emerson of Ipswich, Mass., with some account of | Online |
| Family | | 1643 | 1900 | The Babbitt family history, 1643-1900 | Online |
| Family | | 1643 | 1900 | The Nicholas White family : 1643-1900 | Online |
| Family | | 1647 | 1900 | Genealogy of the Waldo family : a record of the descendants of Cornelius Waldo of Ipswich, Mass., from 1647 to 1900 | Online |
| Family | | 1647 | 1900 | The Jamesons in America, 1647-1900 : genealogical records and memoranda | Online |
| Vital | | 1650 | 1900 | Scottish-American Wills, 1650-1900 | Online |
| Family | CT | 1654 | 1900 | The Hamlin family : a genealogy of Capt. Giles Hamlin of Middletown, Connecticut, 1654-1900 | Online |
| Vital | VA | 1655 | 1900 | Essex County, Virginia Marriages, 1655-1900 | Online |
| Family | | 1657 | 1900 | Whittet, a family record : 1657-1900 | Online |
| Family | | 1660 | 1900 | Arthur Scovell and his descendants in America, 1660-1900 | Online |
| History | ME | 1661 | 1900 | The history of Sanford, Maine, 1661-1900 | Online |
| History | NY | 1669 | 1900 | History of Victor, New York, from 1669 to 1900 | Online |
| Family | | 1670 | 1900 | The genealogy of the Pendarvis-Bedon families of South Carolina, 1670-1900 : together with lineal ancestry of husbands and wive | Online |
| Other | | 1684 | 1900 | Repertoire des mariages, Sainte-Anne-de-la-Perade, 1684-1900 | Online |
| Cemetery | | 1700 | 1900 | Scottish-American Gravestones, 1700-1900 | Online |
| History | | 1700 | 1900 | Two hundred years at Muscle Shoals : being an authentic history of Colbert County, 1700-1900 : with special emphasis on the sti | Online |
| Other | | 1717 | 1900 | The Scotch-Irish McElroys in America, A.D. 1717-A.D. 1900 | Online |
| Vital | NM | 1727 | 1900 | New Mexico Marriages, 1727-1900 | Online |
| History | | 1734 | 1900 | History of Roanoke County, Salem, Roanoke City, Virginia, and representative citizens, 1734-1900 | Online |
| Family | MA | 1736 | 1900 | History of the town of Bernardston, Franklin County, Massachusetts : 1736-1900 : with genealogies | Online |
| History | | 1738 | 1900 | History of the Middle Spring Presbyterian Church, Middle Spring, Pa., 1738-1900 | Online |
| History | | 1740 | 1900 | The history of Mecklenburg County from 1740 to 1900 | Online |
| Family | PA | 1740 | 1900 | County and Family Histories: Pennsylvania, 1740-1900 | CD |
| Other | CT | 1744 | 1900 | Norfolk, Litchfield County, Connecticut, 1744-1900 | Online |
| Vital | NC | 1744 | 1900 |  North Carolina Vital Records: Marriages 1744 - 1900 (Select Counties and Years) | CD |
| Family | | 1750 | 1900 | Five generations : life and letters of an American family, 1750-1900 | Online |
| Military | | 1754 | 1900 | Alphabetical list of battles, 1754-1900 : War of the Rebellion, Spanish-American War, Philippine Insurrection, and all old wars | Online |
| History | | 1770 | 1900 | Sketch of Chesterfield, N.H., Township No. One, and history of the Congregational Church from 1770 to 1900 | Online |
| Military | | 1775 | 1900 | Officers of the Continental and U.S. Navy and Marine Corps, 1775-1900 | Online |
| History | ME | 1775 | 1900 | Sesquicentennial history of the town of Greene, Androscoggin County, Maine : 1775 to 1900, with some matter extending to a late | Online |
| Other | OH | 1788 | 1900 | Ohio statesmen and annals of progress : from the year 1788 to the year 1900 / by William A. Taylor ; Aubrey C. Taylor, collab | Online |
| Other | PA | 1789 | 1900 | Newspapers of Berks County, Pennsylvania, 1789-1900 | Online |
| Other | | 1790 | 1900 | The Trimmells in America, 1790-1900 | Online |
| Other | VT | 1791 | 1900 | General catalogue of the University of Vermont and State Agricultural College, Burlington, Vermont, 1791-1900 | Online |
| Vital | | 1793 | 1900 | Norfolk County, MA Probate Index 1793-1900 | Online |
| Other | | 1800 | 1900 | Binghamton : its settlement, growth, and development, and the factors in its history, 1800-1900 | Online |
| Other | KY | 1800 | 1900 | A century of Wayne County, Kentucky, 1800-1900 | Online |
| Vital | OH | 1803 | 1900 | Ohio Marriages, 1803-1900 | Online |
| Other | MN | 1805 | 1900 | Minnesota Holiday Anecdotes, 1805-1900 | Online |
| Other | | 1817 | 1900 | A conscientious turncoat : the story of John M. Palmer, 1817-1900 | Online |
| Church | PA | 1818 | 1900 | Pennsylvania: Reformed Congregation of Roth's Church Baptisms, York County 1818-1900 | Online |
| History | | 1819 | 1900 | History of Michael S. Wenger (1819-1900) | Online |
| Other | | 1820 | 1900 | Chronicles of Holland House, 1820-1900 | Online |
| Other | MO | 1821 | 1900 | Bates County, Missouri History, 1821-1900 | Online |
| History | PA | 1825 | 1900 | A historical sketch of the Independent Congregational Church, Meadville, Pennsylvania : 1825-1900 | Online |
| Vital | MS | 1826 | 1900 | Mississippi Marriages, 1826-1900 | Online |
| Vital | | 1829 | 1900 | St. Luke's Records 1829-early 1900's | Online |
| Vital | WI | 1835 | 1900 | Wisconsin Marriages, 1835-1900 | Online |
| Other | MA | 1842 | 1900 | New Ashford, Massachusetts Land Owners, 1842-1900 | Online |
| Other | | 1845 | 1900 | Centralia, the first fifty years : 1845-1900 | Online |
| History | UT | 1847 | 1900 | Tales of a triumphant people : a history of Salt Lake County, Utah, 1847-1900 | Online |
| Other | CA | 1850 | 1900 | Yuba County, California History, 1850-1900 | Online |
| Vital | AR, KS | 1851 | 1900 | Arkansas Marriages, 1851-1900 | Online |
| Vital | GA | 1851 | 1900 | Georgia Marriages, 1851-1900 | Online |
| Vital | IA | 1851 | 1900 | Iowa Marriages, 1851-1900 | Online |
| Vital | IL | 1851 | 1900 | Illinois Marriages, 1851-1900 | Online |
| Vital | KY | 1851 | 1900 | Kentucky Marriages, 1851-1900 | Online |
| Vital | LA | 1851 | 1900 | Louisiana Marriage Records, 1851-1900 | Online |
| Vital | MO | 1851 | 1900 | Missouri Marriages, 1851-1900 | Online |
| Vital | TN | 1851 | 1900 | Tennessee Marriages, 1851-1900 | Online |
| Vital | MO | 1852 | 1900 | Clay County, Missouri Marriages, 1852-1900: Vol. 1-3 | Online |
| Church | NY | 1854 | 1900 | Thomas K. Beecher : teacher of the Park Church at Elmira, New York, 1854-1900. | Online |
| World | UK | 1854 | 1900 | Scotland, Highland Railway Company, January 1854 - 1900 | Online |
| Vital | CO | 1859 | 1900 | Colorado Marriages, 1859-1900 | Online |
| Other | MN | 1860 | 1900 | Harlan Hall, Minnesota Politics, 1860-1900 | Online |
| Vital | VA | 1863 | 1900 | West Virginia Marriage Records, 1863-1900 | Online |
| Other | | 1866 | 1900 | Ft. Smith Criminal Case Files, 1866-1900 | Online |
| Other | MI | 1870 | 1900 | Michigan Biographical Sketches, 1870-1900 | Online |
| Vital | NV | 1870 | 1900 | Nevada State Journal, 1870-1900 | Online |
| Other | WI | 1870 | 1900 | Wisconsin Political Commentary, 1870-1900 | Online |
| Other | OH | 1873 | 1900 | Ohio comes of age, 1873-1900 | Online |
| Church | | 1875 | 1900 | Brief history, Salem Reformed Church, Allentown, Pa., 1875-1900 | Online |
| Other | MA | 1890 | 1900 | Representative men of Massachusetts, 1890-1900 : the leaders in official, business and professional life of the commonwealth. | Online |
| Vital | KS | 1891 | 1900 | Leavenworth County, Kansas Births, 1891-1900 | Online |
| Military | IN | 1894 | 1900 | Lineage book, National Society of the Daughters of the American Revolution of Indiana : 1894-1900 | Online |
| Other | MO | 1896 | 1900 | Buchanan County, Missouri Taxpayers, 1896-1900 | Online |
| Other | KS | 1898 | 1900 | Leavenworth Advertiser and McLouth Times (Kansas), 1898-1900 | Online |
| Other | NY | 1898 | 1900 | New York in the Spanish-American War, 1898 : part of the report of the adjutant-general of the state for 1900. | Online |
| Other | | 1899 | 1900 | Annual report of the officers and committees for 1899-1900 : to which is added the list of officers and members and a catalogue | Online |
| Directory | | 1899 | 1900 | Bay City directory for 1899-1900 | Online |
| Directory | | 1899 | 1900 | Boyd's directory of Morristown, Dover, Madison, Boonton, Chatham, and Summit, 1899-1900 | Online |
| Directory | | 1899 | 1900 | Hall's Official Country Directory of New South Wales 1899-1900 (on CD) | CD |
| Directory | | 1899 | 1900 | Polk's Alpena city and county directory, 1899-1900 | Online |
| Directory | | 1899 | 1900 | R.L. Polk & Co.'s Pueblo city directory, 1899-1900 | Online |
| Directory | | 1899 | 1900 | Titusville and Meadville cities and Crawford County directory, 1899-1900 : in three parts | Online |
| Directory | DE | 1899 | 1900 | Boyd's directory of Delaware County, Penna., 1899-1900 : containing a general directory of Chester City, and of the towns of C | Online |
| Census | | 1900 | | 1900 United States Federal Census | Online |
| Directory | | 1900 | | Ballenger & Richards twenty-eighth annual Denver city directory for 1900 : containing a complete list of the inhabitants, insti | Online |
| Other | | 1900 | | Charles Holder, Life in California, early 1900s | Online |
| Other | | 1900 | | Clifford Allen, Rail Trip to California, early 1900s | Online |
| Directory | | 1900 | | Cripple Creek District directory, 1900 : all the cities and towns of Teller County : containing complete lists of the inhabitan | Online |
| Other | | 1900 | | Cyclopedia of Tasmania 1900 (on CD) | CD |
| Census | | 1900 | | Mecklenburg-Schwerin Census, 1900 | Online |
| Directory | | 1900 | |  New South Wales Post Office Directory (Wise's) 1900 (on CD) | CD |
| Other | | 1900 | | Notable St. Louisans in 1900 : a portrait gallery of men whose energy and ability have contributed largely towards making St. L | Online |
| Directory | | 1900 | |  Nottinghamshire 1900 Kelly's Directory (on CD) | CD |
| Family | | 1900 | | Official report of the fifth American Tyler family reunion : held at Philadelphia, Pa., Wednesday, September 12, 1900 | Online |
| Military | | 1900 | | Official souvenir and program of the dedication of the Soldiers' Monument, New Britain, Conn., Sept. 19, 1900 | Online |
| Other | | 1900 | | The 2nd National Bank of Phillipsburg, since 1900 : 61 years of progress. | Online |
| Church | | 1900 | | The fiftieth anniversary of the organization of the Reformed Church of South Branch, N.J., Tuesday, May 29, 1900 | Online |
| Other | | 1900 | | Thrilling Experiences in the War in South Africa 1900 (on CD) | CD |
| Directory | | 1900 | | Tillotson's Englewood and Northern Valley directory, 1900 | Online |
| Directory | | 1900 | | Warwickshire Directory, 1900 | Online |
| Directory | | 1900 | | Yewen's Directory of Landholders, New South Wales, 1900 (on CD) | CD |
| Other | | 1900 | 1901 | Rochester, the power city, 1900-1901 | Online |
| Family | | 1900 | 1901 | The Detroit society address book : elite family directory, club membership, 1900-1901 | Online |
| Directory | | 1900 | 1902 | Directory of Montgomery County, Penna. 1900-1902 | Online |
| Vital | | 1900 | 1902 | Western Life Newspaper Name Index, 1900-02 | Online |
| Other | | 1900 | 1905 | The Jamestown evening journal index, January 1900-December 1905 | Online |
| Other | | 1900 | 1910 | Iosco County, MI, Iosco County Gazette Index, 1900-1910 | Online |
| History | | 1900 | 1935 | The story of Carnegie Tech : being a history of Carnegie Institute of Technology from 1900 to 1935 | Online |
| Family | | 1900 | 1943 | Continuation of Waldo genealogy, 1900-1943 | Online |
| Other | | 1900 | 1959 | Published writings of Arthur Caswell Parker 1900-1959 : a bibligraphy : typescript, | Online |
| Census | AR, KS | 1900 | | Newton County, Arkansas Census, 1900 | Online |
| Directory | CO | 1900 | | Colorado state business directory : with Colorado mining directory department, 1900. | Online |
| Census | GA | 1900 | | Houston County, Georgia Census, 1900 | Online |
| Census | GA | 1900 | | Irwin County, Georgia Census, 1900 | Online |
| Census | HI | 1900 | 1910 | Hawaii Census, 1900-10 | Online |
| Vital | KS | 1900 | | Annals of Brown County, Kansas : from the earliest records to January 1, 1900 | Online |
| Other | KS | 1900 | | Leavenworth, Franklin and Douglas Counties, Kansas Name Index, 1900 | Online |
| Other | KS | 1900 | 1920 | Leavenworth County, Kansas Tax Payers, 1900-1920 | Online |
| Vital | KS | 1900 | 1920 | Leavenworth county, Kansas, Marriage Records, 1900-1920 | Online |
| Census | KY | 1900 | | Daviess County, Kentucky Census, 1900 | Online |
| Other | LA | 1900 | 1949 | Louisiana Statewide Death Index, 1900-1949 | Online |
| Other | MA | 1900 | | Some works relating to Brookline, Massachusetts, from its settlement to the year 1900 | Online |
| Census | MA | 1900 | | Williamstown, Massachusetts Census, 1900 | Online |
| Census | MA | 1900 | 1920 | Cheshire, Massachusetts Census, 1900-20 | Online |
| History | ME | 1900 | | A history of Buckfield, Oxford County, Maine : from the earliest explorations to the close of the year 1900 | Online |
| Other | ME | 1900 | | Buckfield, Oxford County, Maine: Town History to 1900 | Online |
| Census | MN | 1900 | 1910 | Rice County, Minnesota Census, 1900-10 | Online |
| Vital | MO | 1900 | 1948 | Callaway County, Missouri Deaths, 1900-1948 | Online |
| Other | OH | 1900 | 1938 | Ohio in the twentieth century, 1900-1938 | Online |
| Family | PA | 1900 | | Notes and Queries Historical and Genealogical /Chiefly Relating to Interior of Pennsylvania Annual Volume 1900 | Online |
| Census | TX | 1900 | | Dawson, Deaf Smith, Denton and Martin, Texas Census, 1900 | Online |
| Census | TX | 1900 | | Gregg County, Texas Census, 1900 | Online |
| Census | UT | 1900 | | Beaver County, Utah Census, 1900 | Online |
| Vital | UT | 1900 | 1905 | Beaver County, Utah Deaths, 1900-05 | Online |
| Census | VA | 1900 | | Rockingham County, Virginia Census, 1900 | Online |
| Census | WA | 1900 | | Thurston County, Washington Census, 1900 | Online |
| Census | WI | 1900 | | Marinette County, Wisconsin Census, 1900 (Excluding Grover Precinct) | Online |
