Namesakes
Arthurian Characters:
1 character
Sir Tristan (a.k.a. Tristram) (m) 
Fictional Characters from Books:
1 character
Tristram Shandy 1759 Tristram Shandy
Hall-of-Famers:
1 baseball
(baseball) Tris Speaker 1937
Notable Athletes:
1 baseball
(baseball) Tris Speaker 1888-1958