禮堂
The building was a major social gathering area for the North Mission with two banquet halls in the basement and its first floor Assembly Hall that included pool tables. Fees from its pool tables and licensed slot machines helped cover the cost of running the building, which had 21 employees in 1955. The Hall Association was forced to close the Assembly hall's slot machine operations in the early 1950s due to a national crackdown on gambling and unions. Working people started abandoning the Mission for the suburbs, causing a general decline of the building and the neighborhood. The San Francisco Labor Council considered selling the building as early as 1955 but decided to renovate instead. The Labor Council took out a $275,000 loan to bring the building up to code, including a new front entrance. The basement was turned into a number of smaller office spaces, while the Assembly Hall and the Auditorium next door were combined into a single space for larger meetings. There were damages to the exterior from the 1957 San Francisco earthquake that struck the city, the largest since the 1906 earthquake.