Namesakes
Notable Musicians:
1 musician, 1 singer/musician
Ritchie Valens 1941-1959 
Ritchie Blackmore 1945-
Olympic Medalists:
1 gold
(gold) George Hodgson (a.k.a. Ritchie) 1912 swimming - 1500 m freestyle; swimming - 400 m freestyle
Rock and Roll Hall-of-Famers:
2 musicians
Ritchie Valens 2001
Ritchie Blackmore 2016 Deep Purple