The Kate Hillis Boyd Papers consist of .25 linear ft. and are primarily related to her work as an Overseas Secretary for the YWCA of the U.S.A in France and Belgium, 1918-21. There is also a small amount of general biographical material and some materials from her time as General Secretary of the YWCA of Manila, Philippines, 1930-33. Types of materials include typescript correspondence; travel papers and certificates; newspaper articles; memorabilia; and a scrapbook from Boyd's work in Belgium containing printed materials, newspaper clippings, postcards, many photographs, and memorabilia.

The bulk of the papers date from 1918 to 1922 and focus on Boyd's work in France and Belgium during and immediately after World War I. A large portion of this material is a typescript of excerpts from Boyd's letters home to her mother. The first part of the typescript was made by Boyd, circa 1942. Her niece, Cornelia Cree, made the rest of the typescript in 1978, following the style of her aunt's typescript. Cree's correspondence with the YWCA Archivist indicates that the excerpts exclude "personal matters."