Namesakes
Fictional Characters from Television:
1 character
Dewey Wilkerson 2000 Malcolm in the Middle 
Nobel Prize Winners:
1 medicine
(medicine) James Watson (a.k.a. Dewey) 1962
Notable Actors and Actresses:
1 actor
Winsor Harmon (a.k.a. Dewey) 1963-
Notable Athletes:
1 football
(football) Dewey McDonald 1990-
Notable Scientists and Inventors:
1 biologist
James Watson (a.k.a. Dewey) 1928-