The third most populous state in the Union at the time, Ohio raised nearly 320,000 soldiers for the Union army, third behind only New York and Pennsylvania in total manpower contributed to the military and the highest per capita of any Union state. Several leading generals were from Ohio, including Ulysses S. Grant, William T. Sherman, and Philip H. Sheridan. Five Ohio-born Civil War officers would later serve as the President of the United States. The Fighting McCooks gained fame as the largest immediate family group ever to become officers in the U.S. Army.