A passenger list for the Corsican, a Canadian Pacific ship departing Liverpool for Canada on 6 Aug 1920, shows the following booked to travel (3rd class to Quebec):
Andrew Shields, Joiner, 26
Maude Shields, Housewife, 23
Infant Shields (female), 2 months
Their names are struck through, so it appears they did not board the vessel.
Similarly, an A Shields, 26, carpenter was due to travel 3rd class to Quebec on the Minnedosa, departing Liverpool 1 October 1920, but his name is struck through on the passenger list.