Issued: 29-Apr-1944, Canada Gazette
"For courage and seamanship in bringing their ship, HMCS Athabaskan safely to port after she was damaged."
Issued: 15-Jun-1946, Canada Gazette
"Lieutenant-Commander Caldwell is an outstanding Engineering Officer of marked ability, both in administration duties and practical engineering. He served with distinction as Engineer Officer of HMCS Athabaskan when bombed off the coast of France, and as Senior Engineer Officer of HMCS Uganda. In his present appointment, Chief Engineer of His Majesty's Canadian Dockyard, Halifax, he displayed tact, firmness and organizing ability with the personnel serving under him."