The Master Surname Index (not online) (mostly burials in Alberta cemeteries) of the Alberta Genealogical Society lists these names;
Magnus BROWN, 1840 - interred 22 Apr 1924 (Carpenter H.B.C. Boat Builder) burial in the Athabasca cemetery.
There are eight other BROWNS in this cemetery, but none next to him.
For further research please contact the Research Committee of the Edmonton Branch.
http://abgensoc.ca/The Edmonton Branch
http://www.agsedm.edmonton.ab.ca/Peter