Merle Glover eventually made a career with the United States military. I don't know when he left the Canadian Army and joined the U.S. one. He rose to the rank of Lt. Colonel and served in the military for 33 years. His obituary says he is buried in Arlington National Cemetery, but I haven't been able to find his burial information at Arlington.
Obituary of Merle Glover
The Mining Journal, 10 December 1981
I find it interesting that a young man of 15 would want to join the army so bad he would go to Canada, lie about his age to join, and continue to serve for many years to come. The patriotism and dedication of Merle is to be admired.