Namesakes
Fictional Characters from Books:
1 character
Mary Ann Singleton 1978 Tales of the City 
Notable Actors and Entertainers:
2 actors
Penny Singleton 1908-2003
John Singleton 1968-2019
Olympic Medalists:
1 gold
(gold) Mildred McDaniel (a.k.a. Singleton) 1956 high jump