The Petawawa Army Greandes were a team made up of Army personnel from the Petawawa Army Base. They entered teams in the Upper Ottawa Valley League for three seasons -1940-41, 1941-42, and 1942-43. In 1940-41 the league was Senior B. The Grenades won both the league and Ottawa District Hockey Association Senior B titles and the Ottawa Citizen Shield (Senior B). In 1941-42 and 1942-43 the league was intermediate. The Grenades won the league title and Ottawa Citizen Shield (Intermediate) in 1942-43.