Arranged alphabetically by project. Consists of correspondence, drawings, cashbook, and photographs related to Polk's projects. The bulk of the series consists of architectural drawings, which can be accessed through the card file index. Correspondence and other written documentation exists only three projects: The Spring Valley Water Company Mason Street Building, The Women's City Club of San Francisco, and an uncompleted San Francisco War Memorial.

Arranged alphabetically by project. Consists of correspondence, drawings, cashbook, and photographs related to Polk's projects. The bulk of the series consists of architectural drawings, which can be accessed through the card file index. Correspondence and other written documentation exists only three projects: The Spring Valley Water Company Mason Street Building, The Women's City Club of San Francisco, and an uncompleted San Francisco War Memorial.