The Master Surname Index (not online) (mostly burials in Alberta cemeteries) of the Alberta Genealogical Society lists 5 WANGSNESS names all in the Coronation area but no Harry and none that fit your query.
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