The collection documents the formation, administration, and activities of what is believed to be the oldest active Chinese American women's service organization in the United States. The collection includes constitution and bylaws, meeting minutes, committee files, financial records, and materials pertaining to fundraising, service projects, and member events. Also includes correspondence with community-based organizations and other service agencies, including Chung Mei Home for Boys, Ming Quong Home for Girls, Chinese Hospital, and On Lok Senior Health Services.

The Square and Circle Club derives its name from an old Chinese couplet translated as "In deeds be square, in knowledge be all-round". The Square and Circle Club is believed to be the oldest active Chinese women's service organization in the United States and has served the San Francisco Bay Area for over 80 years. Comprised primarily of professional women of Chinese descent, the mission of the club is to promote local community issues, provide monies to organizations and persons in need, and act as a social fellowship for the club members.

8 cartons, 1 poster in flat file (ca. 8.0 cubic feet)

All requests for permission to publish or quote from manuscripts must be submitted in writing to the City Archivist. Permission for publication is given on behalf of the San Francisco Public Library as the owner of the physical items.