Roger, I just checked my booklet of RWR Manitoba soldiers names extracted from that Place of Honour book and found no Evans, so your Grandmothers brother must have served with another regiment. Would that be WW1 or WW2?

For your information - If WW1 - Archivianet has uploaded a lot of WW1 enlistment papers to online for free viewing, a continuing project, and you can copy/save them to your computer. I just did a search for "Robert Evans" for WW1 as an example and it comes up with 44 entries.
http://www.collectionscanada.gc.ca/a...=&interval=100

I went through opening up more than 200 Joseph Smith's to find my grandfathers papers. I hadn't been sure he served until I found them, so it was a great break!

I'll be back as I think of anything that might be helpful to you or if you ask questions people will jump in with answers or try to help. MLU is great for this!!!

Take care.