He played two years of junior with the Niagara Falls Flyers of the Ontario Hockey Association while his NHL rights were owned by the Boston Bruins.
He made his pro debut with the Bruins in 1963-64, playing in 32 games, scoring 12 goals and ten assists. Over the next two years he was inserted into the lineup for just 30 games and was left unprotected in the 1967 NHL Expansion Draft. The Philadelphia Flyers selected him with the 13th pick overall, and from there his career was defined. Fans of old-fashioned, gritty, hard-working hockey players loved the style of Gary Dornhoefer, who will be forever remembered as one of the key figures on the famed "Broad Street Bullies" with the Philadelphia Flyers in the 1970s. The Flyers, called goons by some hockey observers, could also play hockey, and that was what made them special, winning two Stanley Cups in 1973-74 and 1974-75.
Dornhoefer played in 787 games over 14 seasons, scoring 214 goals and 328 assists for 542 points, adding 1291 penalty minutes.
Received these blue ink signed cards TTM.