Scotty Davidson
... that future Hall of Famer Scotty Davidson was the first professional hockey player to volunteer with the Canadian Expeditionary Force on the outbreak of World War I?
... that future <a href="./Hockey_Hall_of_Fame" id="mwB0s" rel="mw:WikiLink" title="Hockey Hall of Fame">Hall of Famer</a> <b id="mwB0w"><a href="./Scotty_Davidson" id="mwB00" rel="mw:WikiLink" title="Scotty Davidson">Scotty Davidson</a></b> was the first professional hockey player to volunteer with the <a href="./Canadian_Expeditionary_Force" id="mwB04" rel="mw:WikiLink" title="Canadian Expeditionary Force">Canadian Expeditionary Force</a> on the outbreak of <a href="./World_War_I" id="mwB08" rel="mw:WikiLink" title="World War I">World War I</a>?