| Area | Vol & Issue |
| Census Notes | 33:2 |
| Artesia Twp 1880 Index | 1:3 |
| Ash Grove Twp 1880 Index | 6:2 |
| Ashkum Twp 1880 Index | 6:3 |
| Beaver Twp. 1880 Index | 7:2 |
| Belmont Twp 1880 Index | 6:4 |
| Chebanse Twp 1880 Index | 7:3 |
| Concord Twp 1880 Index | 7:1 |
| Crescent Twp 1880 Index | 7:4 |
| Danforth Twp 1880 Index | 7:4 |
| Douglas Twp 1880 Index | 8:1 |
| Fountain Creek Twp 1880 Index | 8:2 |
| 1835 State Census Iroquois County | 31:2; 27:3 |
| Illinois State Census 1855 | 23:4; 24; 25; 26; 27; and 28:1 |
| Iroquois County 1840 Index | 7:2 |
| Iroquois Twp 1880 Index | 8:2 |
| Loda Twp 1880 Index | 8:3 |
| Lovejoy Twp 1880 Index | 8:3 |
| Martinton Twp 1880 Index | 9:1 |
| Middleport Twp 1880 Index | 9:2 |
| Milford Twp 1880 Index | 9:1 |
| Milks Grove Twp 1880 Index | 9:3 |
| Mortality Schedule 1850 Iroquois Co | 24:2 |
| Mortality Schedule 1860 Iroquois Co | 24:4 |
| Onarga Twp 1880 Index | 9:3 |
| Papineau Twp 1880 Index | 9:4 |
| Pigeon Grove Twp 1880 Index | 10:1 |
| Prairie Green Twp 1880 Index | 10:2 |
| Ridgeland Twp 1880 Index | 10:3 |
| Sheldon Twp 1880 Index | 10:4 |
| Stockland Twp 1880 Index | 11:1 |
| Stockland Twp 1900 Census Birth Dates | 27:2; 27:3 |