Closest census I can see is
1901
John Campbell 40 born: Ireland occ Varnisher
Sarah Campbell 35 born: Greenock, Renfrewshire
Christina Campbell 12
Mary Campbell 10
Sarah Campbell 8
Henry Campbell 6 born: Glasgow, Lanarkshire
Janet Campbell 3
Charles Montgomery 72
Christina Montgomery 30
Alexander Montgomery 28
Address: 419 1/2 Argyle St Glasgow