William R. Morgan, born in Bennington, Vermont in 1832 or 1833, came to San Francisco in 1852 and settled in St. Louis, Sierra
County, California. In the 1870s, he started a successful hydraulic enterprise with his friend Timothy Donohue. By 1880, George
W. Cox had joined them, and their company became known as the Sierra Union Water and Mining Company. The company, in addition
to working its own mines, contracted to provide water to other mines in the region. Forced to build debris dams to control
wastes from the hydraulic process, Sierra Union was involved in litigation regarding the debris. Morgan moved back to Vermont
in the 1890s, but made several trips back to California to attend to business matters.
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