J. T. Meador / C. T. Macomber Brothers Company / California Eureka-Plumbago Mining Company / / /
Event
Person Travel / /
Facility
California State Library / California History Room California State Library Library / Xiuzhi Zhou California History Room California State Library Library / / /
IndustryTerm
online items / mining / /
Person
George Macomber / Frederick S. Guide / E. F. Macomber / George Ladd / / /