[1] Later that year he ran as a Whig for the office of City Tax Collector of San Francisco.
[2] He joined the Marion Rifles, an outstanding military unit of the California Militia and one of the oldest volunteer companies in the State.
While its commander he saw to the gathering of supplies of food and forage for the advance of the California Column between the Fort and the Pima Villages with the help of Ammi M. White.
After the Californians had recovered New Mexico Territory and captured Franklin, in West Texas, they settled into occupation garrisons and fought to defend the territories of Arizona and New Mexico and West Texas from Apache and Navaho raiders.
Promoted Colonel at Fort Craig, N.M. April 1864, he was discharged at Santa Fe in September 1864.
Rigg decided to stay in the military, joining the regular Army after the Civil War.
520 was passed that provided for the relief of Edwin A. Rigg, for his service as late lieutenant colonel of the First Regiment Infantry California volunteers, making him a Postmaster at Fort Craig.
[10] He moved to Arizona and was a member of Tombstone's Burnside Post, Grand Army of the Republic.