Question: Name the dates for margin of victory being 5 strokes
SQL: SELECT COUNT("Dates") FROM "1-1628792-1" WHERE "Margin of victory" = '5 strokes';

Question: Name the champion for  London Hunt and Country Club ( London , ON )
SQL: SELECT "Champion" FROM "1-1628792-1" WHERE "Tournament location" = 'London Hunt and Country Club ( London , ON )';