Early life
Flora Wellman gave birth to John Griffith Chaney on January 12, 1876 in San Francisco. His biological father William Henry Chaney was absent, so his mother raised him with stepfather John London. After grammar school, he worked 12 to 18 hours a day at a cannery. In 1891, with money loaned by his black foster mother Virginia Prentiss, he bought a sloop and became an oyster pirate. Later that year he joined the California Fish Patrol, and in 1893 he sailed to Japan on a sealing schooner, an experience that produced his first published story Typhoon off the Coast of Japan in November 1893. He became a tramp, was arrested for vagrancy in 1894, and spent a month in jail, witnessing what he called awful abysses of human degradation.