During the California Gold Rush (1848–1855), he disposed of the museum and joined a wagon train for California. He took the so-called "southern route," and was one of the first settlers of
Los Angeles, California in 1850. where a large coal mine named the "Black Diamond" was located. Nortonville is now part of the
Black Diamond Mines Regional Preserve, managed by the
East Bay Regional Park District. His wife, Sarah Norton, became a locally famous midwife who met a violent death in October, 1879, by a runaway horse pulling her carriage. Her son would later be the person to place his Mother at Rose Hill Cemetery in what is now Black Diamond Regional Park. She is buried in
Rose Hill Cemetery, at Nortonville, where it is rumored that she periodically presents herself to visitors as a white ghost. ==Death and burial==