- newspapers348,761
- clippings (information artifacts)10,420
- obituaries10,210
- marriage licenses6,922
- photographs5,085
- civil court records4,015
- black-and-white negatives3,258
- judicial records3,161
- black-and-white photographs2,849
- maps2,728
- letters (correspondence)2,287
- publications (documents)2,201
- safety film negatives1,916
- cadastral maps1,910
- maps (documents)1,770
- biographies (literary works)1,768
- questionnaires1,753
- state government records1,736
- aerial photographs1,716
- plats (maps)1,663
