What I know about the Kelsey clan is kind of interesting. They came to California from Missouri, but the clam originated in North Carolina. Likely, like my own family, they got land in Tennessee for their service during the Revolutionary War. When Missouri, and Arkansas, opened up to homesteads, they moved west. This continued until they ran out of dry land.
They were a big diverse clan, some of them hard working farmers, and craftsmen, and some rustlers, and outlaws. They were related to the McLowry brothers that died at the O.K. Corral, and some of the clan were part of an outlaw band that terrified the Bay Area, and surrounding counties.
The gunsmithing history is not mentioned much at all in Lake County history, so I’m inclined to assume either it was a sideline, or was practiced in another county.
Hungry Horse