James Freeman Curtis II (December 19, 1825 – March 1, 1914), participant in the 1849 California Gold Rush, Chief of Police of San Francisco, officer in the California state militia and volunteer in the American Civil War.

[2] Curtis was the Chief of Police of San Francisco with his election to the office November 4, 1856, which he held until 1858.

[3][4] During the Civil War, Curtis, joined the 4th Infantry Regiment California Volunteers as Major on September 2, 1861.

He took command of 4th Infantry Regiment California Volunteers, August 20, 1863 until it was disbanded by consolidation, November 30, 1865.

On April 11, 1864 he was promoted Colonel of the 4th Infantry Regiment, and continued as commander of Camp Drum, and the Military District.