[2] During the First World War he joined the U.S. Army, and served as a first lieutenant in the all-black 93rd infantry Division, which undertook operations with French troops.

He returned to the US in the early 1920s and began teaching at Virginia Union University, a historically black college in Richmond.

The main findings indicated there was little improvement in education due to the choice of Southern white Marines as country administrators – men who had been raised with Jim Crow laws in the American South and had brought their prejudice with them to their new assignment in Haiti, a majority-black republic.

The main improvement effort resulted in establishing agricultural schools, which were highly expensive and staffed by non-French speakers, so classes had to be translated.

Logan drafted Roosevelt's executive order prohibiting the exclusion of blacks from the military in World War II.