The Master Surname Database (not online) (mostly burials in Alberta cemeteries) of the Alberta Genealogical Society lists some 30 ROULSTON names, only this one is in or near Bowden;
Robert ROULSTON, - 11 Apr 1908
burial in the Bowden cemetery, Bowden.
For further research please contact the Research Committee of the Edmonton Branch.http://abgensoc.ca/
The Edmonton Branchhttp://www.agsedm.edmonton.ab.ca/