William H. Jackson
William Hicks “Red” Jackson, a West Point graduate, served briefly in the U.S. Army before resigning when the Civil War broke out. He joined the Confederate Army, rising to the rank of brigadier general commanding cavalry by the end of the war. He was born in 1835 and died in 1903.
Frank C. Armstrong
Frank Crawford Armstrong, a U.S. Army cavalry officer, later served as a brigadier general in the Confederate States Army during the Civil War. He is notable as the only Confederate general known to have fought for the Union early in the war before switching sides. He was born in 1835 and died in 1909.
Lawrence S. Ross
Lawrence Sullivan “Sul” Ross served as a Confederate States Army general during the Civil War, commanding Texas cavalry. After the war he became the 19th governor of Texas, serving from 1887 to 1891, and later the fourth president of what is now Texas A&M University. He was born in 1838 and died in 1898.