Namesakes for Harrison
Harrison Ford
1942-
(soccer) Harrison Afful
1986- 
(football) Harrison Smith
1989-
(bronze) Clarence DeMar (a.k.a. Harrison)
1924 marathon 
(gold) Harrison Glancy
1924 swimming - 4x200 m freestyle relay 
(gold) Harrison Dillard
1948; 1952 100 m; 110 m hurdles; 4x100 m relay