- Jack Pink Papers (1)
- Jacob Fisher Papers (5)
- James A. Hamilton Collection (77)
- James Ford Bell Library General Collection (130)
- James Henry Stuart Letters (63)
- James O. Stephenson Papers (1)
- James Sewell Ballet Records (45)
- Jeanette and Kenneth Frank Papers (1)
- Jesse Alexander Papers (30)
- Jesuit Manuscripts Relating to China (10)
- Jewish Community Relations Council Records (30)
- Jewish Fellowship Club Records (3)
- Jewish Fellowship News (279)
- Jewish Historical Society of the Upper Midwest Media Collection (1031)
- Jewish Historical Society of the Upper Midwest Oral History Collection (176)
- Jewish History Collection (11)
- John Fullerton Papers Concerning the Events at Jeddah, 1727 (6)
- John Gabriel Stedman Archive and Book Manuscript (9)
- John Gibler Papers (54)
- John H. Howe Papers (393)
