Namesakes
Grammy Award Winners:
1 album of the year
(album of the year) Bob Dylan (a.k.a. Zimmerman) 1998 Time Out of Mind 
Hall-of-Famers:
1 football
(football) Gary Zimmerman 2008
Nobel Prize Winners:
1 literature
(literature) Bob Dylan (a.k.a. Zimmerman) 2016
Notable Musicians:
2 musicians
Bob Dylan (a.k.a. Zimmerman) 1941-
Joel "Deadmau5" Zimmerman 1981-
Olympic Medalists:
1 silver
(silver) Suzanne Zimmerman 1948 swimming - 100 m backstroke
Rock and Roll Hall-of-Famers:
1 musician
Bob Dylan (a.k.a. Zimmerman) 1988