Yes, I am sure.
"The Jeep" in service with the Royal Canadian Artillery at Camp Shilo in 1937. There are other photos and the army called these vehicles "The Jeep" back in 1936-1937.
Then too, we tested two of the first 70 Bantam 'jeeps' made.
Don't believe everything you read. The name "Jeep" did NOT come from the letters "GP". I believe it came from the Popeye cartoon character which was introduced in 1936, just when the RCA got their new half-tracks. One of these is restored (minus the limber boxes) and in Vimy House at the Canadian War Museum in Ottawa.
I used to own a slat grille WIllys jeep that was made on the first day of production got the Canadian Army - Feb 11, 1942. That was MB119021 and I sold it back to the Federal Government for museum use. It is now in storage at Fort Rodd Hill National Historic Park.
See my web page at: http://bcoy1cpb.pacdat.net/jeeps.htm