Excellent!
You can order his full military file from LAC. It could have some useful information in it.
As for Murdo, he is living in Vancouver in 1915. Assuming he stayed in BC his whole life, there is a Murdo McLeod who died in 1971 age 94 years which would put his birth year 1877.
I'll direct one of our BC researches to this thread as she may be able to get more information.
Karen