| Type | Region | Begin Date | End Date | Description | Format |
|---|
| Family | | 1500 | 1800 |  Eight generations of the Pepys family, 1500-1800 | Online |
| Church | DE, MD | 1600 | 1800 |  Church Records: Maryland and Delaware, 1600s-1800s | CD |
| Vital | MA | 1600 | 1800 |  Massachusetts Vital Records, 1600s-1800s | CD |
| Vital | NY | 1600 | 1800 |  New York City Marriages, 1600s-1800s | Online |
| Other | VA | 1623 | 1800 | Virginia Apprentices, 1623-1800 | Online |
| Other | | 1630 | 1800 | The commissariot record of Inverness : register of testaments, 1630-1800 | Online |
| Vital | | 1637 | 1800 |  English Settlers in Barbados, 1637-1800 | Online |
| Vital | | 1647 | 1800 | Wills and Administrations of Isle of Wight County, Virginia, 1647-1800 | Online |
| Vital | | 1649 | 1800 | Married Well and Often: Marriages of the Northern Neck of Virginia, 1649-1800 | Online |
| Family | CT | 1650 | 1800 | Middletown upper houses : a history of the north society of Middletown, Connecticut, from 1650 to 1800, with genealogical and b | Online |
| Vital | VA | 1654 | 1800 | Westmoreland County, Virginia Wills, 1654-1800 | Online |
| Vital | | 1660 | 1800 | A Calendar of Wills Proved in the Consistory Court of the Bishop of Gloucester Vol. 2 - 1660-1800 (on CD) | CD |
| Family | | 1660 | 1800 | Old houses of the antient [sic] town of Norwich, 1660-1800 : with maps, illustrations, portraits, and genealogies | Online |
| Other | NJ | 1665 | 1800 |  New Jersey Biographical Sketches, 1665-1800 | Online |
| Vital | NJ | 1665 | 1800 | New Jersey Marriages, Colonial Era, 1665-1800 | Online |
| Vital | | 1675 | 1800 | American Data from the Records of the High Court of the Admiralty of Scotland, 1675-1800 | Online |
| Vital | DE | 1680 | 1800 | Calendar of Kent County, Delaware probate records, 1680-1800 | Online |
| Vital | DE | 1680 | 1800 | Kent County, Delaware Probate Records, 1680-1800 | Online |
| Vital | DE | 1680 | 1800 | Sussex County, Delaware Probate Records, 1680-1800 | Online |
| Vital | DE | 1682 | 1800 | Calendar of Delaware Wills, New Castle County, 1682-1800 | Online |
| Vital | DE | 1682 | 1800 | New Castle County, Delaware Wills, 1682-1800 | Online |
| Vital | VA | 1688 | 1800 | Wills and Administrations of Elizabeth City County, Virginia 1688-1800 | Online |
| Vital | | 1699 | 1800 | Wills of Richmond County, Virginia, 1699-1800 | Online |
| Vital | | 1700 | 1800 | Boston Births, 1700-1800 | Online |
| Vital | | 1700 | 1800 | Boston Births, 1700-1800 | Online |
| Vital | PA | 1710 | 1800 | Bucks County, Pennsylvania, 1710-1800: Southampton Dutch Reformed Church | Online |
| World | UK | 1715 | 1800 | Aberdeen, Scotland, Register of Testaments, 1715-1800 | Online |
| Vital | | 1717 | 1800 | The record of births, marriages and deaths and intentions of marriage, in the town of Stoughton from 1717 to 1800, and in the t | Online |
| Vital | | 1721 | 1800 | Spotsylvania County records, 1721-1800 : being transcriptions, from the original files at the County Court House, of wills, dee | Online |
| Vital | VA | 1721 | 1800 | Spotsylvania, Virginia County Records, 1721-1800 | Online |
| History | | 1723 | 1800 | A history of New Hanover County : and the lower Cape Fear region : 1723-1800 | Online |
| Family | | 1724 | 1800 | The descendants of Deacon Aaron Baldwin of North Branford, Conn., 1724-1800 : with a brief account of his ancestors | Online |
| Vital | PA | 1733 | 1800 | York County, Pennsylvania, 1733-1800: Christ Evangelical Lutheran Church | Online |
| History | MA | 1734 | 1800 | The history of Pittsfield (Berkshire County) Massachusetts : from the year 1734 to the year 1800 | Online |
| Vital | PA | 1745 | 1800 | York County, Pennsylvania, 1745-1800: First Reformed (Trinity) Church | Online |
| Vital | | 1749 | 1800 | Wills and Administrations of Southampton County, Virginia, 1749-1800 | Online |
| Vital | PA | 1750 | 1800 | Tohickon Union Lutheran Church, Bucks County, Pennsylvania, 1750-1800 | Online |
| Church | PA | 1751 | 1800 | Bucks County, Pennsylvania, 1751-1800: Trinity Union Lutheran and Reformed Church | Online |
| Vital | PA | 1751 | 1800 | Sherman's (St. David's) Union Church, York County, Pennsylvania, 1751-1800 | Online |
| Vital | | 1755 | 1800 | Marriage bonds of Bedford County, Virginia, 1755-1800 ... | Online |
| Family | ME | 1755 | 1800 | The ancestry of Charity Haley, 1755-1800 : wife of Major Nicholas Davis of Limington, Maine | Online |
| Vital | | 1757 | 1800 | Abstracts of Wills, Inventories, and Administration Accounts of Loudoun County, Virginia, 1757-1800 | Online |
| Vital | PA | 1758 | 1800 | York County, Pennsylvania, 1758-1800: First Moravian Church | Online |
| Vital | | 1759 | 1800 | Abstracts of Fauquier County Virginia, Wills Inventories and Accounts 1759-1800 | Online |
| Vital | ME | 1760 | 1800 | Lincoln County, Maine: Probates, 1760-1800 | Online |
| Vital | ME | 1760 | 1800 | The Probate Records of Lincoln County, Maine, 1760 to 1800 | Online |
| Other | NC | 1760 | 1800 | North Carolina Will Abstracts, 1760-1800 | Online |
| Vital | PA | 1760 | 1800 | York County, Pennsylvania Church Records, 1760-1800: Codorus Township | Online |
| Other | | 1763 | 1800 | The Northwest fur trade, 1763-1800 | Online |
| Vital | PA | 1764 | 1800 | York County, Pennsylvania, 1764-1800: Strayer's (Salem) Reformed Church | Online |
| Other | | 1769 | 1800 | Annals of southwest Virginia, 1769-1800 | Online |
| Other | | 1769 | 1800 | Annals of Southwest Virginia, 1769-1800 | Online |
| Military | | 1770 | 1800 | The Black presence in the era of the American Revolution, 1770-1800 | Online |
| Other | VA | 1775 | 1800 | Virginia Northern Neck Land Grants, 1775-1800. [Vol. III] | Online |
| Vital | MD | 1778 | 1800 | Maryland Marriages, 1778-1800 | Online |
| Vital | KY | 1786 | 1800 | Bourbon County, Kentucky Marriage Records, 1786-1800 | Online |
| Other | | 1788 | 1800 | The laws of the Northwest Territory, 1788-1800 | Online |
| Vital | KY | 1792 | 1800 | Shelby County, Kentucky Marriage Bonds: 1792-1800 | Online |
| Census | | 1800 | | 1800 United States Federal Census | Online |
| Church | | 1800 | | A century sermon, preached before the First Church in Windham, December 10, A.D. 1800 | Online |
| Other | | 1800 | | Addenda, Old Fort Edward before 1800 | Online |
| Cemetery | | 1800 | | Bloomfield and Montclair cemetery inscriptions before 1800 | Online |
| Other | | 1800 | | Frederick Rindge, Life in California, Late 1800s | Online |
| Family | | 1800 | | Genealogy of the Culbertson and Culberson families : who came to America before the year 1800, and several families that have c | Online |
| Vital | | 1800 | | Hampshire County Marriages of the 1800s | Online |
| History | | 1800 | | Historical sketch of the Sabbath-schools connected with the First Presbyterian Congregation of Pittsburgh : from A.D. 1800 to A | Online |
| Immigration | | 1800 | | Immigration Records: Dutch in America, 1800s | CD |
| Cemetery | | 1800 | | Inscriptions on tombstones in Milford, Conn., erected prior to 1800 : together with a few of the aged persons who died after th | Online |
| Cemetery | | 1800 | | Inscriptions on tombstones in New Haven, erected prior to 1800 | Online |
| Directory | | 1800 | | Manchester and Salford Directory, 1800 | Online |
| Other | | 1800 | | Michael White, Life in Mexican California, early 1800s | Online |
| Other | | 1800 | | Quakerism on Nantucket since 1800 | Online |
| Other | | 1800 | | Santa Barbara Travel Guide, late 1800s | Online |
| Immigration | | 1800 | 1819 | Passenger Arrivals at the Port of Philadelphia, 1800-1819 | Online |
| Vital | | 1800 | 1820 | South Carolina Marriages, 1800-1820 | Online |
| Immigration | | 1800 | 1850 | Philadelphia, 1800-1850 Passenger and Immigration Lists | Online |
| Vital | | 1800 | 1853 | Wills of Centre County, Pa., 1800-1853 | Online |
| Other | | 1800 | 1860 | Ramapo and Rockland in the homespun age : 1800-1860 | Online |
| Other | | 1800 | 1900 | Binghamton : its settlement, growth, and development, and the factors in its history, 1800-1900 | Online |
| Other | | 1800 | 1912 | Through eleven decades of history : Watertown, a history from 1800 to 1912 with illustrations and many incidents | Online |
| Immigration | | 1800 | 1945 | Philadelphia Passenger Lists, 1800-1945 | Online |
| Other | | 1800 | 1950 | The First one hundred and fifty years, 1800-1950 | Online |
| Vital | AL | 1800 | 1969 | Alabama Marriage Collection, 1800-1969 | Online |
| Census | AZ, NM | 1800 | | Arizona and New Mexico Territories Census, Late 1800s | Online |
| Census | Canada | 1800 | 1842 | Ontario and Nova Scotia Census, 1800-1842 | Online |
| Vital | CT | 1800 | | Connecticut Marriages to 1800 | Online |
| Census | DC | 1800 | 1890 | District of Columbia Census, 1800-90 | Online |
| Other | IN | 1800 | 1816 | Executive journal of Indiana Territory, 1800-1816 | Online |
| Other | IN | 1800 | 1890 | A descriptive catalogue of the official publications of the territory and state of Indiana : from 1800 to 1890 : including refe | Online |
| Vital | IN | 1800 | 1941 | Indiana Marriage Collection, 1800-1941 | Online |
| Census | KY | 1800 | | Second Census' of Kentucky 1800 | Online |
| Vital | KY | 1800 | 1821 | Henry County, Kentucky Will Records for 1800 to July 1821 | Online |
| Vital | KY | 1800 | 1824 | Barren County, Kentucky Wills, 1800-24 | Online |
| Vital | KY | 1800 | 1830 | Mercer County, Kentucky Marriage Records, 1800-1830 Vol. II-III | Online |
| Other | KY | 1800 | 1900 | A century of Wayne County, Kentucky, 1800-1900 | Online |
| Family | KY, VA | 1800 | | A Massie family history : descendants of James R. Massie of Virginia and Kentucky and his sons William Redman Massie (born 1800 | Online |
| Directory | MA | 1800 | | Boston, Massachusetts Directory, 1800 | Online |
| Vital | MA | 1800 | | Early Massachusetts Marriages Prior to 1800, Vol. I | Online |
| Vital | MA | 1800 | | Early Massachusetts Marriages Prior to 1800, Vol. II | Online |
| Vital | MA | 1800 | | Early Massachusetts Marriages Prior to 1800, Vol. III | Online |
| Vital | MA | 1800 | | Early Massachusetts Marriages Prior to 1800, Vol. IV | Online |
| Census | MA | 1800 | | Index to the 1800 Census of Massachusetts | Online |
| Vital | MA | 1800 | | Massachusetts Marriages to 1800 | Online |
| History | MA | 1800 | 1876 | The history of Pittsfield (Berkshire County) Massachusetts : from the year 1800 to the year 1876 | Online |
| Census | ME | 1800 | 1890 | Maine Census, 1800-90 | Online |
| Vital | ME | 1800 | 1892 | Gardiner, Kennebec County Maine, Birth & Death records 1800 - 1892 | Online |
| Vital | MI | 1800 | 1917 | Oakland County, Michigan Vital Records, 1800-1917 | Online |
| Vital | MS | 1800 | 1833 | Jefferson County, Mississippi Wills, 1800-33 | Online |
| Vital | NC | 1800 | 2000 | North Carolina Birth Index, 1800-2000 | Online |
| Family | NJ | 1800 | | Cumberland County, New Jersey genealogical data : records pertaining to persons residing in Cumberland County prior to 1800 | Online |
| Family | NY | 1800 | | Certain members of the Lord family, who settled in New York city in the early 1800's : descendants of Thomas Lord of Hartford, | Online |
| Other | NY | 1800 | | Old Fort Edward before 1800 : an account of the historic ground now occupied by the village of Fort Edward, New York | Online |
| Census | NY | 1800 | | Otsego County, New York, U.S. Census of 1800, for the towns of Cherry Valley (all) and Middlefield (part) : names of heads of f | Online |
| Other | NY | 1800 | 1850 | A bibliography of books and pamphlets printed at Geneva, N.Y., 1800-1850 | Online |
| Vital | NY | 1800 | 1855 | New York Marriage Notices, 1800-55 | Online |
| History | NY | 1800 | 1874 | Spaulding's history of Crown Point, N.Y., from 1800-1874 | Online |
| Other | NY | 1800 | 1899 | Broome County New York, Leading Citizens, 1800-99 | Online |
| Other | NY | 1800 | 1954 | A homely approach to Lewiston, N.Y., 1800-1954 | Online |
| Vital | OH | 1800 | 1850 | Marriage records of Clermont County, Ohio, 1800-1850 | Online |
| Vital | OH | 1800 | 1882 | Knox County, Ohio Vital Records, 1800-82 | Online |
| Church | PA | 1800 | | Private Church Registers to 1800, York County, Pennsylvania | Online |
| Family | PA | 1800 | | The Kitzmiller family in Pennsylvania before 1800 | Online |
| History | PA | 1800 | | The Monongahela of old, or, Historical sketches of south-western Pennsylvania to the year 1800 | Online |
| Vital | PA | 1800 | | York County, Pennsylvania Church Records to 1800 | Online |
| Church | PA | 1800 | 1830 | Hamilton Township, Northampton County, Pennsylvania, 1800-1830: Union Church | Online |
| Vital | PA | 1800 | 1846 | York County, Pennsylvania Marriages, 1800-46: First Trinity Reformed Church | Online |
| Church | PA | 1800 | 1855 | Dauphin County, Pennsylvania, 1800-55: Hoffman Reformed Church | Online |
| Vital | PA | 1800 | 1856 | Trinity Tuplehocken Reformed Congregation Births, Lebanon County, Pennsylvania, 1800-56 | Online |
| Vital | PA | 1800 | 1856 | York County, Pennsylvania, 1800-56: Emmanuel's Reformed Church | Online |
| Other | PA, WA | 1800 | | Lists of inhabitants in Washington County, Pennsylvania, 1800 or before | Online |
| Census | SC | 1800 | | Index to the 1800 Census of South Carolina | Online |
| Census | SC | 1800 | | Laurens County, South Carolina Census, 1800 | Online |
| Family | TN | 1800 | | Grimes, Cook, and related families of Wayne County, Tennessee : a genealogy : related families, Johnson, Morris, Montague, 1800 | Online |
| Vital | VA | 1800 | | Virginia Marriages to 1800 | Online |
| Vital | VA | 1800 | 1814 | Hampshire County [West] Virginia Personal Property Tax Lists, 1800-1814 | Online |
| Other | VA | 1800 | 1862 | Virginia Northern Neck Land Grants, 1800-1862. [Vol. IV] | Online |
| Other | VA | 1800 | 1922 | Annals of Tazewell County, Virginia from 1800 to 1922 in two volumes | Online |
