The William Raymond Yelland collection consists primarily of project records, arranged alphabetically by project. These include specifications, drawings, correspondence, notes, and a clipping. Drawings, which form the bulk of the collection, largely relate to residential work, although some commercial and apartment buildings, including Normandy Village, are also included. The collection also includes an attendance book and other materials from a technical drawing class that Yelland taught at night for adults through the Oakland Public Schools in 1933.