Namesakes
Notable Actors and Entertainers:
3 actors
Dennis O'Keefe (a.k.a. Flanagan) 1908-1968 
Fionnula Flanagan 1941-
Tommy Flanagan 1965-
Olympic Medalists:
1 bronze, 1 silver, 1 silver/gold
(silver/gold) John Flanagan 1900; 1904; 1908 56 lb weight throw; hammer throw
(silver) Ralph Flanagan 1936 swimming - 4x200 m freestyle relay
(bronze) Shalane Flanagan 2008 10000 m