The John Howland Collection spans his lifetime and includes some posthumous material. It contains scrapbooks, newspaper clippings, certificates, photographs, correspondence, and reprints. The 4 scrapbooks include photographs, clippings, correspondence, programs, invitations, and notebooks documenting Howland's education and early career in medicine. Also noteworthy are transcripts of eulogies written in memory of Howland by Janos Bokay, Ader Bosahyi, and Graham Lusk.