1. My Mary was the second daughter of James Wynn, the second of five daughters to James & Grace.
My record of Mary's marriage to Edward MARTYN came from familysearch.org showing the marriage on 23 August 1824 at Crowan, Cornwall but I have no evidence to say that it is my Mary Wynn.
I now see that my Mary was living as Wynn with her father in the 1841 census in Falmouth.
I now accept that it was my Mary who married Daniel in c1852 and that she was not previously married.
2. I have baptism records for George Huxham Wynn and confirm "Huxham" and his birth of 27 April 1804. George was the fifth son and last child of ten of James & Grace.
3. Marriage of George Huxham Wynn and Julie/Julia: You say this marriage was in c1853-54. In familysearch.org there is a record of GEORGE HASHAM WYNN marrying JULIA FRIGONI on 15 October 1836 at Old Church, Saint Pancras, London, England. Clearly this is my George Huxham and your Julia Frizoni. What do you make of that?