"Signatures" are printed/sewn in. Most of the player names are kanji, which we can't read well enough to ascertain exactly which roster year this is. One name, however is in latin script. Wally Yonamine was a member of the Giants from 1951-1960. Yonamine was an an American citizen, born in Hawaii, and with one season played in the minors before going to Japan to play, Since the names are done to resemble signatures, that is likely why his isn't kanjii.