Sonora Exploring and Mining Company.

• First annual report of the Sonora Exploring and Mining Company, made to the stockholders March 16, 1857 ..
• Report ... made to the stockholders ... 1856
• Report of Frederick Brunkow ... to a committee of the stockholders of the Sonora Exploring & Mining Co., upon the history, resources, and prospects of the company in Arizona, with an appendix
• Second annual report of the Sonora Exploring & Mining Co