Houston Wheeler of San Antonio coached the Tiger baseball team from 1963-1985. The Tigers advanced to the national playoffs in 1969, 1972 and 1973. Trinity also won the Southland Conference championship five times under Wheeler's guidance, in 1964, 1965, 1966, 1969 and 1973. Wheeler was chosen as the SLC Coach of the Year in 1965 and 1968.

As a student-athlete on Trinity's Waxahachie, Texas, campus, Wheeler was captain of the football team and made All-Conference in basketball. Wheeler received the Bachelor of Arts in business administration in 1941.