1. Hip Sing Association: A Chinese fraternal organization in San Francisco, similar to a benevolent society. It provides support and assistance to its members, including protection and social services.
2. Wo Hop To Saving & Loan Society: Another Chinese fraternal organization in San Francisco that offers financial services to its members, such as loans and savings accounts.
These brotherhoods serve as important community organizations, providing a sense of belonging, safety, and support for Chinese immigrants in San Francisco during the early 20th century.