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White House Farm appears to be at Mundesley, and the suggestion is that they are from tree #022, possibly part of the family of George 478 Gotts and Emily Pardon. George 480 their son died when living there in 1959.
In 1911 George 478 was a farmer at Trimingham, though George 480 was in Leytonstone, in London as a Railway constable.
See Rosamond Leeder’s recollections of White House Farm here