The Master Surname Database (not online) (mostly burials in Alberta cemeteries) of the Alberta Genealogical Society lists these names;
Hans JOHANSON, - 5 Sep 1913
Marthise JOHANSON, - 27 Sep 1918 both at plot 01,033.
Wilhelm L. JOHANSON, May 1870 - 14 Jul 1959 plot 02,096
burial in the Minburn cemetery
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