Hi,
Searching the 1911 Census for Canada /Alberta finds the following:
http://www.automatedgenealogy.com/census11/Test16.jsp?id=141...
Lines 39-45
John 49,Annie 46,Albert 26,John 25, Walter 22,Robert 2, Ida 17
Alberta GenWeb Local History Books
http://www.rootsweb.com/~canab/lhb/scho.txt
Perhaps some of the names are family connected?
http://www.rootsweb.com/%7Ecanab/lookups.html

Western Land Grants:
http://www.collectionscanada.ca/archivianet/western-land-gra...

Searching Online White Pages Directory canada.411.ca
finds 70 SCHRADER surnames in Alberta

Cheers, Stella