Couple of weeks ago I was going around newspaperarchives and found bit of goaltender trivia. The Montreal Gazette - Dec 18, 1903 I looked bit further that story. In Ottawa Citizen there was story about Toronto Marlboros public training were they mentions this. Ottawa Citizen - Dec 16, 1903 Of course the story doesnÂ´t tell was it actually Giroux who experimented with the mask (Toronto newspaperarchives gives hits from that winter with searches but I donÂ´t have access to those). Allthough I do believe that is impossible to know who was the first to use "mask". I believe that as long as there is hockey played there has been various experiments with different kind of protections, but that might be the first time when "high profile" goaltender was seariously playing with the idea of wearing some sort of face/head protector in top level games. Eddie Giroux 1903-1904 Toronto Marlboros OHA senior champion Stanley cup challenge with Marlboros Toronto East vs. West All Star game (corrected from OHA all star game) 1904-1905 Rat Portage Thistles Manitoba hockey association champion Stanley cup challenge with Thistles 1905-1906 Kenora Thistles MHA champion 1906-1907 Kenora Thistles Manitoba Professional Hockey League champion Stanley Cup winner with Thistles Wikipedia article mentions that after that he retired. I do believe that he continued his career because there was goaltender Eddie Giroux playing in Ottawa city leagues after that. He was at one point considered to the job for the Ottawa Hockey Club CHA/NHA team goaltender.