- records (documents)5,803
- church records5,748
- maps (documents)5,725
- publications (documents)4,523
- slides (photographs)4,514
- periodicals4,415
- files (document groupings)4,248
- letters (correspondence)3,953
- born digital3,735
- maps3,195
- judicial records3,153
- color transparencies3,110
- executive orders3,042
- black-and-white prints (photographs)2,983
- safety film negatives2,835
- minutes (administrative records)2,809
- postcards2,756
- military records2,753
- editorial cartoons2,614
- oral histories (literary works)2,400
