The 1901 census gave their ages as George 42, Sarah 41, George 19, Robert 15, John 10 and James 7. The photo probably was taken around 1900.
According to the census, the family lived at 1 Bannockburn Rd, St Ninians, in Stirlingshire County. The studio that took the photograph had offices at 36 Primrose Street, Alloa, and 129 New Row, Dunfermline, Scotland. This photo was probably taken in Alloa, which is much closer to St Ninians than Dunfermline is.