| U.S., Newspapers.com™ Obituary Index, 1800s-current | 1,141,084,696 |
| U.S., Newspapers.com™ Marriage Index, 1800s-current | 317,718,851 |
| U.S., Obituary Collection, 1930-Current | 207,463,224 |
| U.S., Find a Grave® Index, 1600s-Current | 176,906,048 |
| U.S., Social Security Applications and Claims Index, 1936-2007 | 133,418,498 |
| U.S., Cemetery and Funeral Home Collection, 1847-Current | 128,185,368 |
| U.S., Social Security Death Index, 1935-2014 | 94,331,813 |
| Web: Obituary Daily Times Index, 1995-2016 | 16,133,735 |
| U.S., Department of Veterans Affairs BIRLS Death File, 1850-2010 | 14,465,010 |
| U.S., Veterans' Gravesites, ca.1775-2019 | 9,365,080 |
| U.S., Evangelical Lutheran Church in America Church Records, 1781-1969 | 9,112,821 |
| U.S., Indian Census Rolls, 1885-1940 | 7,559,854 |
| New York, New York, U.S., Index to Death Certificates, 1862-1948 | 7,346,095 |
| New York, New York, U.S., Index to Birth Certificates, 1866-1909 | 6,091,199 |
| U.S., Headstone Applications for Military Veterans, 1861-1985 | 4,997,883 |
| Nebraska, U.S., Birth Ledgers, 1904-1911, Birth Index, 1912-1994 | 3,484,431 |
| U.S., American Historical Society of Germans from Russia Obituaries, 1899-2012 | 2,937,060 |
| U.S., Federal Census Mortality Schedules, 1850-1885 | 1,607,736 |
| U.S., Sons of the American Revolution Membership Applications, 1889-1970 | 1,268,400 |
| Missouri Synod, U.S., Lutheran Church records, 1851-1972 | 1,176,212 |
| New Orleans, Louisiana, U.S., Birth Records Index, 1790-1915 | 1,082,167 |
| New York, New York, Index to Marriage Licenses, 1908-1910, 1938-1940 | 964,666 |
| U.S., Hinshaw Index to Selected Quaker Records, 1680-1940 | 887,019 |
| Web: Global, Gravestone Photograph Index, 1265-2014 | 876,327 |
| U.S., National Cemetery Interment Control Forms, 1928-1962 | 826,157 |
| U.S., Deceased Physician File (AMA), 1864-1968 | 707,724 |
| U.S., Burial Registers, Military Posts and National Cemeteries, 1862-1960 | 556,034 |
| U.S., Federal Census Mortality Schedules Index, 1850-1880 | 492,925 |
| U.S., Headstone and Interment Records for U.S., Military Cemeteries on Foreign Soil, 1942-1949 | 461,322 |
| U.S., Cemetery Index from Selected States, 1847-2010 | 354,365 |
| U.S., Reports of Deaths of American Citizens Abroad, 1835-1974 | 339,673 |
| Daughters of the American Revolution Lineage Books (152 Vols.) | 333,348 |
| U.S., Army Personnel and Dependent Casualties, 1961-1981 | 293,855 |
| U.S., Evangelical Covenant Church, Swedish American Church Records, 1868-1970 | 292,881 |
| U.S., Registers of Deaths of Volunteers, 1861-1865 | 249,612 |
| U.S., Newspaper Marriage Index, 2002-2015 | 229,322 |
| U.S., French Catholic Church Records (Drouin Collection), 1695-1954 (in French) | 228,368 |
| U.S., Civil War Roll of Honor, 1861-1865 | 203,022 |
| U.S., Headstones Provided for Deceased Union Civil War Veterans, 1861-1904 | 170,057 |
| U.S., World War II and Korean Conflict Veterans Interred Overseas | 159,582 |
| U.S., Korean War Casualties, 1950-1957 | 153,640 |
| New York, Episcopal Diocese of Central New York Church Records, 1800-1970 | 138,461 |
| U.S., Vietnam War Military Casualties, 1956-1998 | 118,528 |
| Web: U.S., Marine Corps Casualty Indexes, 1940-1958 | 115,570 |
| U.S., Newspaper Birth Index, 2005-2015 | 112,489 |
| U.S., Consular Reports of Births, 1910-1949 | 104,878 |
| American Soldiers of World War I | 89,332 |
| U.S., Navy Pensions Index, 1861-1910 | 81,655 |
| U.S., Index to Quaker Obituary Notices, 1822-2012 | 79,196 |
| Abstract of Graves of Revolutionary Patriots | 57,498 |
| U.S, UK and Ireland, Quaker Published Memorials, 1818-1919 | 55,135 |
| U.S., Select Births and Christenings, 1867-1931 | 54,622 |
| Mayflower Births and Deaths, Vol. 1 and 2 | 45,912 |
| Web: Kansas Historical Society, Knights and Ladies of Security, Index to Death Claims, 1902-1930 | 45,496 |
| U.S., Freedmen’s Bureau Marriage Records, 1846-1867 | 37,953 |
| U.S., Consular Reports of Marriages, 1910-1949 | 37,112 |
| U.S., Carded Birth Records in Military Hospitals, 1884-1916 | 35,218 |
| U.S., Cemetery Address Book, 1994 | 28,812 |
| United States, Officer Down Memorials, 1791-2022 | 26,185 |
| Early Members of the Reorganized Church of Jesus Christ of Latter Day Saints | 25,973 |
| U.S., Registers of Deaths in the Regular Army, 1860-1889 | 23,801 |
| U.S., Compiled Records from Various Societies, 1875-2010 | 22,086 |
| U.S., F.B.I. Deceased Criminal Identification Files, 1971-1994 | 19,807 |
| U.S., Published Quaker Family Histories, 1845-1920 | 17,950 |
| U.S., Selected Jewish Obituaries, 1948-2002 | 17,134 |
| U.S., Military Burial Registers, 1768-1921 | 15,757 |
| New York, New York, U.S., Riverside Church Records, 1841-1945 | 15,614 |
| U.S., Professional Baseball Player Profiles, 1876-2004 | 13,622 |
| U.S., Special Census on Deaf Family Marriages and Hearing Relatives, 1888-1895 | 10,482 |
| American Marriages Before 1699 | 10,028 |
| Israel, Index to Records from U.S. Consular Posts in Jerusalem, Jaffa, and Haifa, 1857-1935 | 9,107 |
| U.S., Evangelical Free Church of America, Swedish American Church Records, 1842-1947 | 7,854 |
| U.S., World War I Naval Deaths, 1917-1919 | 7,273 |
| U.S., Casualties From Iraq and Afghanistan Conflicts, 2001-2012 | 6,498 |
| U.S, Papers of Rabbi Samuel Langer, 1929-1969 | 5,650 |
| U.S., Navy Burial Records, 1898-1932 | 4,052 |
| U.S., Select Deaths and Burials, 1867-1961 | 3,863 |
| LDS Pioneer and Handcart Companies, 1847-1856 | 3,174 |
| Robert Burrows and descendants, 1630-1974 | 1,812 |
| Underhill genealogy | 1,630 |
| U.S., Hopkins Family Marriage Index, 1652-1890 | 1,410 |
| Jews in Colonial America (AJHS Oppenheim Collection), 1650-1850 | 1,371 |
| U.S., Register of Colored Troop Deaths During the Civil War, 1861-1865 | 1,369 |
| Cape Cod Library of Local History and Genealogy, Vol. II | 1,099 |
| English Origins of New England Families, Second Series, Vol. I | 1,068 |
| Lineages of Members of the National Society of Sons and Daughters of the Pilgrims, Vol. III | 1,047 |
| Gateway to The West, Vol. II | 1,010 |
| Gateway to The West, Vol. I | 984 |
| Scholl, Sholl, Shull genealogy : the colonial branches | 955 |
| Baltimore County Families, 1659-1759 | 930 |
| Van Deursen family | 925 |
| Record of the descendants of James Ensign and his wife Sarah Nelson, 1634-1939-1960 | 890 |
| Richmond family records | 888 |
| U.S., Registration Certificates - Widows, Divorced Women, & Minors, 1907-1914 | 886 |
| Cape Cod Library of Local History and Genealogy, Vol. I | 882 |
| Sheppard-Marshall and allied families | 878 |
| English Origins of New England Families, Vol. I | 845 |
| Simon Stone genealogy : ancestry and descendants of Deacon Simon Stone of Watertown, Mass., 1320-1926 | 823 |
| Sayre family : lineage of Thomas Sayre, a founder of Southampton | 810 |
| Robert Wilkin (1766-1835) and Mary (Hyde) Wilkin, their parents and descendants : a genealogy | 804 |