Lt. Col. Joseph Bailey for Bailey's Dam on the Red River that saved Porter's fleet at Alexandria.
Source: Wikipedia
Labor Day Bonus:
Answer: Clinton Bowen Fisk
Fisk University, in Nashville, Tenn.
Sources: Wikipedia (Clinton Bowen Fisk and Fisk University), Alphonso A. Hopkins, The Life of Clinton Bowen Fisk (online digital edition), Generals in Blue.
“Fisk University is ranked #6 among historically black universities, according to U.S. News and World Report, and is the oldest institution of higher learning in Nashville, Tennessee.” https://www.fisk.edu