| Title | Category | Subcategory | Records |
|---|---|---|---|
| Chester County, Pennsylvania, Septennial Census Returns Index, 1793 | Census, Land & Surveys | Census | 71,430 |
| Chester County, Pennsylvania, Tax Record Index, 1747-1764 | Institutions & Organisations | Government | 35,811 |
| Chicago Roman Catholic Cemetery Records, 1864-1989 | Life Events (BMDs) | Parish Burials | 1,920,895 |
| Chicago Roman Catholic Parish Baptisms | Life Events (BMDs) | Parish Baptisms | 1,564,480 |
| Chicago Roman Catholic Parish Burials | Life Events (BMDs) | Parish Burials | 266,640 |
| Chicago Roman Catholic Parish Congregational Records | Churches & Religion | Religious Ceremonies | 431,976 |
| Chicago Roman Catholic Parish Marriages | Life Events (BMDs) | Parish Marriages | 217,627 |
| Chicago Roman Catholic Parish Registers Browse | Life Events (BMDs) | Parish Registers | 232,392 |
| Chicago, Illinois, Police Department Homicide Record Index, 1870–1930 | Institutions & Organisations | Courts & Legal | 12,702 |
| Chile Baptisms 1585-1932 | Life Events (BMDs) | Parish Baptisms | 2,213,408 |
| Chile Deaths 1700-1920 | Life Events (BMDs) | Parish Burials | 255,593 |
| Chile Marriages 1579-1930 | Life Events (BMDs) | Parish Marriages | 818,491 |
| Cincinnati Roman Catholic Parish Baptisms | Life Events (BMDs) | Parish Baptisms | 524,118 |
| Cincinnati Roman Catholic Parish Browse | Life Events (BMDs) | Parish Registers | 119,179 |
| Cincinnati Roman Catholic Parish Burials | Life Events (BMDs) | Parish Burials | 297,787 |
| Cincinnati Roman Catholic Parish Congregational Records | Life Events (BMDs) | Parish Registers | 2,949 |
| Cincinnati Roman Catholic Parish Marriages | Life Events (BMDs) | Parish Marriages | 259,909 |
| Civil War Medal Of Honor, 1861-1865 | Armed Forces & Conflict | Regimental & Service Records | 1,210 |
| Civil War Prisoners, 1861-1865 | Armed Forces & Conflict | Regimental & Service Records | 47,488 |
| Civil War Sailors, 1861-1865 | Armed Forces & Conflict | Regimental & Service Records | 17,853 |