There has been one accrual. The fonds consists of correspondence to and from the Harrison family, financial documents, family mementoes and keepsakes, and correspondence to Bess Ready.

The fonds consists of correspondence, scrapbooks containing news clippings about Wilkins, research notes, typescripts and photographs of experiments, and published articles.

The fonds consists of offprints of his scientific papers, a typed list of his publications to 1966, and a photocopy of one page of proofs. The offprints have arranged in alphabetical order by journal title.

The fonds consists of materials from his time in high school and university and then his military career.