John George Langdon was born 1 August 1840 in England, United Kingdom to John Langdon (1805-1893) and Sarah Dale (-1871) and died 16 July 1906 Sandy Creek Molong, New South Wales, Australia of unspecified causes. He married Anne Maria Wenban (1851-1928) 19 June 1872 Benaree in Orange, New South Wales, Australia.
|Offspring of John George Langdon and Anne Maria Wenban (1851-1928)|
|Henry Charles Langdon (1873-1897)|
|Amy Jane Langdon (1875-1966)|
|Frederick George Langdon (1877-1936)|
|David John Langdon (1880-1955)|
|Sarah Ellen Langdon (1882-1922)|
|Albert Alpheus Langdon (1884-1974)|