Brett & Poidasdad,
There is a tree on Ancestry named the Moodie Tucker tree. In 1891, the family is living at Springhill House, Cathcart, Renfrewshire. The head of the family is John Moodie, 56, a Commercial Traveller, born Bonhill, Dunbartonshire. His wife is Jane, 48, [maiden name Mowbray, 1841-1928], who was born in Ireland. Robert V Moodie is aged 5. There are 15 people on this census.
In 1891, the family is at 181 Queens Drive, Cathcart.
Robert V is now 15.
Do either of you already have the full information?
P.S. The birth certificate for Robert Valentine Moodie in 1886 is there on Scotlands People, but you won't find it under Glasgow. It is under Renfrewshire. The south of Glasgow has a border with Renfrewshire, so it appears he was born or registered just at the edge of the Glasgow boundary.