1921 2 Sundle Ave York Townshiop
Frederick Terry 43   Head
Alice Terry 42   Wife
Frederick Terry   23   Son
That must be another Fred/Alice?
I think this is them in 1921:
Frederick Terry
Age:    49
Birth Year:    abt 1872
Birth Place:    England
Year of Immigration:    1903
Residence Date:    1 Jun 1921
Residence:   863 12th Ave E , Vancouver 
Occupation, Bank messenger
Wife Alice
No other family with them.