7th Infantry Regiment, California National Guard, c. 1910.
The photographer's studio is Barnett & Sons, Los Angeles. Clearly this is Company C of the 7th Infantry Regiment, California National Guard, which agrees with the pre-1914 assignment of that unit to the city of Los Angeles. About half of the 7th Regiment's companies were based in Los Angeles, with the remainder scattered throughout southern California.
Page by Mark Conrad, 2010.