The Rosemont National was one of the founding clubs of the QMJHL, along with the Drummondville Rangers, Quebec Remparts, Shawinigan Bruins, Sherbrooke Castors, Sorel Éperviers, Trois-Rivières Ducs, Cornwall Royals, Laval Saints, Saint-Jérôme Alouettes and Verdun Maple Leafs. It was installed in a neighbourhood of Montreal, Rosemont-La Petite Patrie, hence its name. They played in the Paul Sauve Arena.
|Season||League||Regular season||Playoffs||Head coach|
|1969-70||QMJHL||56||23||30||3||46||245||275||3rd in Western Div.|
Few National alumni have played pro hockey past their junior days. Bob Sirois probably was the most famous, having played 286 games in the National Hockey League with the Philadelphia Flyers and the Washington Capitals. He totalled 92 goals and 120 assists in the NHL. André Peloffy also played in the NHL, 9 games with the Capitals in 1974-75. The France-born player returned to his motherland in 1979 after some more seasons in the American Hockey League and became a regular French National Team member who played at the 1988 Olympics. Center Richard Grenier played ten games with the New York Islanders in 1972-73 and 34 with the WHA's Quebec Nordiques in 1976-77. Frank Rochon scored 71 goals and 60 assists in 255 WHA games with the Chicago Cougars, the Ottawa Civics and the Indianapolis Racers. François Ouimet had short WHA stints with the Denver Spurs, the Minnesota Fighting Saints and the Cincinnati Stingers. Goaltender Rich Coutu played in 24 games in the World Hockey Association for the Chicago Cougars and the Cincinnati Stingers.
- All-time games played: Rich Coutu, 92
- All-time scoring leader: André Peloffy, 118
- All-time goals leader: André Peloffy, 49
- All-time assists leader: André Peloffy, André Bouchard and Serge Vézina, 69
- All-time penalty minutes leader: Pierre Zappa and Yvon Rolando, 199
- All-time season goals: André Peloffy, 49
- All-time season assists: André Peloffy, André Bouchard and Serge Vézina, 69
- All-time season points: André Peloffy, 118
- All-time wins:
- All-time shutouts: