Ok, fitting with above re Samuel and knowing Mary married in Bristol in 1877, there are three Lennox family members, Samuel, Mary and Elizabeth, all born Ireland, living in household of and noted as cousin & lodger of, a Robert Stewart and his sister, Mary Ann Stewart, both of Ireland. Address, St Paul Street. Year 1871.
By 1891 Samuel, a draper, is married and still in St Paul Street, with his wife and children. Transcript says birthplace for Samuel was IRELAND ANGLIUM, so likely should be Aughrim.