The P.R. Jeffcott Papers consist of information collected by Jeffcott in his pursuits of the local history of Whatcom County, Washington.  The materials in the collection are concentrated around the topics that interested Jeffcott.  Researchers must pay attention to the fact that this collection directly reflects Jeffcott's own personal interests, biases, and the time period in which he lived. The collection contains both primary and secondary sources, some of which are available in other places and are not archival in composition.  The value of the collection lies in the convenience of having these unique and difficult to find materials located in one source.  Some of the topics which grabbed Jeffcott's attention include pioneer "Blanket" Bill Jarman, the Mt. Baker Gold Rush, and the settlement of Whatcom County by white settlers.  The collection also includes material about the Nooksack tribe in Whatcom County. 

The collection consists of ten boxes of material including correspondence, research materials and notes, manuscripts, pamphlets, and books.  The collection also includes several hundred photographs, negatives, and maps.  

The correspondence has been organized by date, correspondent, and general topic, if clearly evident.  All correspondence is incoming unless otherwise noted.  The letters span from 1923-1966 and contain responses to Jeffcott's research inquiries regarding various aspects of Whatcom County history.  Research materials and notes consist of items used by Jeffcott in his many articles, speeches, and books.  The manuscripts include typed as well as handwritten drafts of P. R. Jeffcott's books, copies of published and unpublished articles, as well as some writings of local authors other than Jeffcott.  The pamphlets are made up of various pamphlets which reflect Jeffcott's interest in Northwest Washington State and Whatcom County in particular.  The books consist of just two books collected by Jeffcott on Washington State topics.