K
- Kairys, David, Papers (UPT 50 K134)
- Kane Family Papers (UPT 50 K916)
- Kelley, Charles A., Collection (UPT 50 K30)
- Kendrick, George W., Photograph Album (UPT 50 K33)
- Kennedy, Ruth, Scrapbook (UPT 50 K35)
- Kessler, John Rissel, Papers (UPT 50 K425)
- Kimmell, Louis J.C., Scrapbook (UPT 50 K49)
- Kintner, Watson, Papers (UPT 50 K51)
- Klarmann, Adolf Donald, Papers (UPT 50 K63)
- Klein, Laura Ruth Murray, Papers (UPT 50 K641)
- Kraenzlein, Alvin C., Scrapbooks (UPT 50 K89)
- Kuczynski, Bernard Carl, Football Playbook (UPT 50 K95)