San Francisco SPCA | 6,654 followers on LinkedIn. We've been bringing pets and the people who love them together for 150+ years. | At the San Francisco SPCA we envision a world in which the love people share with animals uplifts humanity to a state of greater compassion. On a spring day in 1868, San Francisco banker James Sloan Hutchinson caught sight of two men dragging a terrified hog along the rough cobblestone street. Appalled, Hutchinson stepped in to stop the cruelty and rescue the hog.