Patrick Chambers (labor organizer)

Pat Chambers (born John Ernest Williams; September 13, 1901 – May 8, 1990) was an influential labor organizer and Communist Party member in California in the 1930s. He was a key figure in some of the largest California agricultural strikes of 1933. Chambers was the inspiration for the character "Mac" in John Steinbeck's 1936 novel, In Dubious Battle.