The Boyd Family papers span the period from 1835 to 1978, and contain personal papers, correspondence, and photographs of the Boyd and March families. The collection is divided into two series: Correspondence and Personal Papers and Photographs.

Correspondence and Personal Papers is arranged in two subseries: Correspondence and Personal Papers. The series contains a variety of records and documents belonging to the Boyd and March families. Included are correspondence of Alden Boyd, Joanna March Boyd and others, family birth records and obituaries, an example of Joanna March Boyd's writing, genealogical records, and miscellaneous papers including David I. Boyd's calling card, Alden March's passports, and a listing of the attendants at the wedding of Margaret Boyd Bush.

Photographs is arranged in three subseries: People, Places, and Miscellaneous Images. The series primarily contains portraits of Boyd family members, although others are included as well. Particularly well represented in the collection are Josephine March Boyd (1860-1897), wife of Allan Stuart Boyd (1860-1920), and her children, Stuart, Janet, Olive, and Scott. The subseries of Places holds photographs of the Boyd homes in California and Switzerland. From 1882 to 1884, J.M. Boyd (Joanna March or Josephine March?) traveled to Europe. J.M.'s photograph album, picturing scenes in France, Switzerland, Italy, and Germany, is in the collection. Although most of the photographs in the collection are identified, many are undated.