Namesakes
Fictional Characters from Movies:
1 character
David Clemens 1962 David and Lisa 
Most Valuable Players:
1 winner
Roger Clemens 1986 baseball
Notable Athletes:
1 baseball, 1 football
(baseball) Roger Clemens 1962-
(football) Kellen Clemens 1983-
Notable Writers:
1 author
Mark Twain (a.k.a. Clemens) 1835-1910