Professional papers of physics professor, James Calvin "Cal" Walker, with some personal pieces of correspondence and photographs. Professional papers compose of grants and grant finances, letters of recommendation, conference and travel files, teaching files, general academic correspondence, manuscripts from early in his career, readers, organizational membership files, research notes and studies, charts, transparencies, and X-rays. The papers range from the 1960s to the early 2000s.

John Higham was a historian and professor at Johns Hopkins University with a principal field of interest in American social and intellectual history of the nineteenth and twentieth centuries. The collection consists of holographic course notes, outlines, examination booklets, and other assignments completed during his undergraduate years at The Johns Hopkins University, 1937-1939, as well as material relating to Dr. Higham's teaching and writing career.

This collection are composed of Ryan's papers from her time as a professor focusing on Baltimore history at Hopkins, from 2002 to 2016. Primarily composed of lecture and research notes, course files, and some manuscript fragments.