Lafayette C. Baker
Lafayette Curry Baker was a United States investigator and spy, serving the Union Army, during the American Civil War and under Presidents Abraham Lincoln and Andrew Johnson.
Baker was born in Stafford, New York on October 13, 1826. He became a mechanic, moved to Michigan in 1839, returned to New York in 1848, moved to California in 1853, and was a San Francisco vigilante in 1856. He moved to the District of Columbia in 1861.
Source: Wikipedia