John Leadbeater (1804/5–56)
Bird dealer and taxidermist. At 19 Brewer Street, Golden Square West, London. Ornithologist to Queen Victoria.
Census returns of England and Wales 1851 (The National Archives: Public Record Office HO107/1485/357/10)
Post Office London directory 1858
Prerogative Court of Canterbury will registers (The National Archives: Public Record Office PROB 11/2237/153)