Organized at San Francisco September 5 to October 18, 1861. Company "A" - Ordered to Fort Churchill October 22, 1861, and duty there till July, 1862. March via Ruby Valley to Utah to protect Overland mail routes July to November, 1862. Duty in District of Utah at Camp Douglass and other points till November, 1864. Expedition from Camp Douglass to Cache Valley November 20-27, 1862. Skirmish at Cache Valley November 23, 1862. Engagement on Bear River, Utah, January 29, 1863. Expedition from Camp Douglass to Cedar Mountains, Utah, March 20-April 3. Skirmish, Cedar Fort, April 1. Expedition from Camp Douglass to Spanish Forks, Utah, April 11-20, 1863. Skirmish at Spanish Fork Canon April 15. Ordered to Camp Union, Sacramento, November, 1864. Duty there and in Districts of California and Nevada till muster out.
