The Master Surname Database (not online) (mostly burials in Alberta cemeteries) of the Alberta Genealogical Society lists these names;
Peter Alexander MCDONALD, 1894 - 28 Dec 1975
burial in the Inga cemetery near Stony Plain.
There are more MCDONALD burials in this and other cemeteries in the area, but none that fit you query.
This is an older cemetery and names of burials may have become lost.
There is a
William J. BURNS, 1845 - 9 or 24 Jan 1931 (h/o Mary MACDONALD, same stone as Blanch & Elizabeth MACDONALD)
burial in the 7 ave Edmonton cemetery.
Both of you need to get the Publication "Alberta Index of Registration of Birth, Marriage & Deaths, 1870 - 1905".
Available at AGS Edmonton.
For further research please contact the Research Committee of the Edmonton Branch.http://abgensoc.ca/