Namesakes
Fictional Characters from Books:
1 character
Jon Snow 1996 A Game of Thrones 
Fictional Characters from Plays and Musicals:
1 character
Enoch Snow 1945 Carousel
Fictional Characters from Television:
2 characters
Jon Snow 2011 Game of Thrones
Myrtle Snow 2013 American Horror Story: Coven
Notable Scientists and Inventors:
1 physician
John Snow 1813-1858
Other Religious Leaders:
1 leader
Lorenzo Snow 1898-1901 The Church of Jesus Christ of Latter-day Saints
Saints:
1 blessed
Blessed Peter Snow ?-1598