Office records for the architectural firm of W.P. Day, including correspondence, financial and personnel records, project files, and plans; together with some personal papers, and other documents. Projects represented include Golden Gate International Exposition (1939-1940) and San Francisco International Airport (1951).

William Petyon Day was an architect, of San Francisco, California.

2 boxes, 1 carton (2.0 linear ft.)

All requests to reproduce, publish, quote from or otherwise use collection materials must be submitted in writing to the Director of Library and Archives, North Baker Research Library, California Historical Society, 678 Mission Street, San Francisco, CA 94105. Consent is given on behalf of the California Historical Society as the owner of the physical items and is not intended to include or imply permission from the copyright owner. Such permission must be obtained from the copyright owner. Restrictions also apply to digital representations of the original materials. Use of digital files is restricted to research and educational purposes.

CHS is not taking appointments for research at this time. Please check the Library's website updates: https://californiahistoricalsociety.org/collections/north-baker-research-library/