 The District of Columbia, including Washington or adjoining Georgetown, was the birthplace of several Union army generals and naval admirals, as well as a leading Confederate commander.Other important personalities of the Civil War born in the immediate Washington area included Confederate Senator Thomas Jenkins Semmes, Union general John Milton Brannan, John Rodgers Meigs (whose death sparked a significant controversy throughout the North), and Confederate brigade commander Richard Hanson Weightman.Data provided by Until 1890, the U.S. Census Bureau counted the City of Washington, Georgetown, and unincorporated Washington County as three separate areas.