The P-17 or Enfield P-14 is the rifle you say York was issued.
Two of my uncles were drafted after York and they were issued the 1903 Springfield.
In a company picture there are 3 P-17's and the rest are 1903's.
York also used a .45 auto,
I have fired both of these rifles and prefer the 1903.
I have read a couple of times from people who should know, that it was a 1917 Enfield. My Daddy was issued a 1903 Springfield in WWII. He was in the Combat Engineers and later got a Garand.