I have an 1861 census entry for Robert Gibson Allan (born about 1833 Scotland) with his wife Jane Allan born about 1835 Middlesex) and their daughter Mary Jane Allan born 1859 South Shields). They are living at Westoe, South Shields. His occupation is Mariner/Naval Volunteer possibly contributing to the mystery.
They have a son Robert Shay Allan who was born 1856 South Shields, he was staying with his grandmother in the 1861 census.
The initial problem I have is tracing them in 1871 and 1881. I cannot trace any matching deaths, so where are they?
Mary Jane Allan marries in South Shields late 1881 so she should show somewhere in 1871/1881 census
The young Robert Shay Allan, he marries Jan 1881 in South Shields to a Maria Smith born about 1859 South Shields) . I may have traced Robert in 1881 to be on a boat in Deptford. London recorded as Robert Allen b 1856 South Shields. His occupation shows a a Stoker in 1891 and Boilerman in 1901)
I have traced Maria and son Edward in 1881 living with her parents.
I have considered searching Allan and Allen as some census entries are written as Allen
The bigger mystery unfortunately is where in Scotland did Robert Gibson Allan come from.
Dave