In 1851 Anthony, aged 19, shoemaker, is a visitor at 35 Rottenrow, Glasgow, staying with James Young, 27, a shoemaker, and his wife, Maryann, 20. They have children, Elizabeth, 2, and Anthony, 3 months. Other visitors include:
"Rebeca" Young, 17, factory girl
"Cathrine" Young, 15, factory girl
"Easther" Young, 13, scholar
I wonder if James, Anthony, Catherine and Esther are brothers and sisters?
Another thing to consider - in 1855 a great deal of extra information was recorded when births and deaths were registered in Scotland, including the parents' parishes of birth, how long they had lived in the parish where the child's birth took place, their ages, and how many children the mother already had. If Anthony's oldest child, who seems to have been Jane, was born in 1855, it might be useful to see what the certificate says.