Hi, Perhaps posting the name of the family - in Capital Letters ont he subject line - might be helpful.
There may be some people who may have memories or family connected - and could answer your quest.
The Provincial Archive in Edmonton may be able to assit - they may have some records ethttp://en.wikipedia.org/wiki/Redwater,_Alberta
snip The original post office, established in 1907 at a location to the east of present day Redwater, was moved in 1919 to the current town site when Redwater was established as a hamlet. On December 31, 1949 it was incorporated as a village, becoming a town a year later on December 31, 1950. snip