The Robert H. Thomas Papers contain Thomas's research on marine ice sheet instability and related glaciological topics. The collection includes correspondence between Thomas and others regarding his research, collaborative projects, and his career; project proposals; resumes; and drafts and published copies of papers written by Thomas, or directly related to his research. Research, surveys, and information collected by Thomas during his work in the field throughout his career is also included, and consists of field notebooks, reports, charts, graphs, maps, data summaries, color photographs of field research trips at unknown locations conducted by NASA between 1989-1992, and aerial photographs of the Ross Ice Shelf in 1969. The collection also contains USB flash drives with digital image files, PowerPoint presentations, Thomas's obituary, and publications written by Thomas. The collection materials are dated 1968-2010.