The Sumas Roundup Association records document the history and organization of an annual round-up event in the Whatcom County town of Sumas, Washington. Spanning the period 1923-2009, the bulk of materials date from 1923-1930. The collection comprises financial records, photographs, a small amount of ephemera, and reference material.

Financial records date from 1924-1929, and document the acquisition of materials by the Sumas Roundup Association for the event. These records include purchase agreements with several local providers of wood, hay and other supplies, as well as year-end financial reports.

Photographs span the period of 1923-1929, and include pictures of Sumas Roundup Association members such as A. W. Linn. These images also depict the various rodeo events exhibited at the Roundup, and some of the celebrity cowboys and cowgirls who traveled to Sumas to perform. The collection also contains programs from the 1928 and 1929 Roundup, and ribbons from the 1926 Roundup.

Reference materials include a small amount of biographical information regarding key Sumas Roundup Association members, and a brief Internet-published history entitled: “Sumas: A Land Without Trees.” Copies of local newspapers were gathered from the Bellingham American, Bellingham Herald, Bellingham Reveille, and Sumas News, providing valuable documentation of the Roundup’s history through 1930. The clippings also describe some of the performers who attended the Roundup, and provide reports about the cancellation of the 1930 event.