| Title | Category | Subcategory | Records |
|---|---|---|---|
| United States Obituary Notices | Life Events (BMDs) | Civil Deaths & Burials | 38,369,657 |
| Germany Birth and Baptism Index 1558-1898 | Life Events (BMDs) | Parish Baptisms | 37,607,263 |
| 1901 England, Wales & Scotland Census | Census, Land & Surveys | Census | 37,122,942 |
| 1911 Census For England & Wales | Census, Land & Surveys | Census | 36,369,499 |
| 1891 England, Wales & Scotland Census | Census, Land & Surveys | Census | 33,077,808 |
| England Marriages 1538-1973 | Life Events (BMDs) | Parish Marriages | 31,631,836 |
| 1881 England, Wales & Scotland Census | Census, Land & Surveys | Census | 29,841,177 |
| US Census 1860 | Census, Land & Surveys | Census | 27,120,064 |
| 1871 England, Wales & Scotland Census | Census, Land & Surveys | Census | 26,159,572 |
| World War I Draft Registration Cards | Armed Forces & Conflict | First World War | 25,053,484 |
| Passenger Lists Leaving UK 1890-1960 | Travel & Migration | Passenger Lists | 24,113,154 |
| Ireland, Petty Sessions Court Registers | Institutions & Organisations | Courts & Legal | 23,437,915 |
| 1861 England, Wales & Scotland Census | Census, Land & Surveys | Census | 22,615,951 |
| 1851 England, Wales & Scotland Census | Census, Land & Surveys | Census | 20,723,509 |
| US Census 1850 | Census, Land & Surveys | Census | 20,458,406 |
| United States Billion Graves Index | Life Events (BMDs) | Civil Deaths & Burials | 19,485,222 |
| 1841 England, Wales & Scotland Census | Census, Land & Surveys | Census | 18,436,557 |
| Germany Marriage Index 1558-1929 | Life Events (BMDs) | Parish Marriages | 16,829,448 |
| England & Wales Government Probate Death Index 1960-2019 | Life Events (BMDs) | Civil Deaths & Burials | 14,726,301 |
| England Deaths & Burials 1538-1991 | Life Events (BMDs) | Parish Burials | 14,257,950 |