Namesakes
Fictional Characters from Television:
1 character
Jake Hartman 2002 Everwood 
Notable Actors and Entertainers:
2 actors, 1 actor/comedian
Elizabeth Hartman 1943-1987
Phil Hartman 1948-1998
Kim Hartman 1952-
Notable Athletes:
1 soccer
(soccer) Quilindschy Hartman 2001-
Notable Musicians:
1 singer/musician
Dan Hartman 1950-1994
Rock and Roll Hall-of-Famers:
2 musicians
Mickey Hart (a.k.a. Hartman) 1994 The Grateful Dead
John Hartman 2020 The Doobie Brothers