Photographs, correspondence, newspaper and magazine articles/clippings, and other materials belonging to J. Holmes Martin and relating to the history and service of Battery B, Indiana National Guard, and its 50th Year Reunion in May 1967.

The Collection on A. A. Sego documents the life and career of Sego, a 1917 Purdue alumnus and test pilot. The collection includes Sego's 1917 leather bound Gala Week program, one photograph of Sego in his aviator helmet, and several photocopied articles pertaining to his life and career.

The papers of John Wright are comprised of notebooks, financial records (one ledger and additional receipts), publications, and photographs which document John Wright's time as a student at Purdue University, and material from his career as a botanist and drug inspector for Eli Lilly and Company in Indianapolis, Indiana.