Biographical notes:
Addresses: At 1851 census - Cliff Lane, Whitby, YKS; At 1861 census - Abbey Terrace, Whitby, YKS; At 1871 census return - Viponds Yard, Whitby, YKS.
Reference documents:
1848 birth registration index record.
1851 census return (John Kirby).
1861 census return (John Kirby).
1871 census return (George Cass).
1875 death registration index record.