Given the timeframe (circa 1960), a lot of Canadian records will still be closed. And directories and newspapers are just beginning to be digitized. You may need to contact the Waterloo County archives or a private researcher to search for you. The one Ancestry database that might help is Canada, Voters Lists, 1935-1980, **assuming** your father naturalized.
German records also have long privacy periods. That has been addressed by other questions here.