Namesakes
Hall-of-Famers:
1 baseball
(baseball) Vernon "Lefty" Gomez 1972 
Harry Potter Characters:
1 character
Vernon Dursley
Nobel Prize Winners:
1 economics
(economics) Vernon L. Smith 2002
Notable Scientists and Inventors:
1 physicist
C. V. Boys (middle name Vernon) 1855-1944
Notable Writers:
1 author
Boris Vian (a.k.a. Vernon) 1920-1959
Olympic Medalists:
1 bronze/gold, 1 gold, 1 silver
(silver) Ralph Mann (middle name Vernon) 1972 400 m hurdles
(gold) Vern Fleming 1984 basketball
(bronze/gold) Vernon Norwood 2020 4x400 m mixed; 4x400 m relay
Shakespearian Characters:
1 character
Vernon Henry VI (1)