hguppy on Family Tree Circles

I have researched Thomas Barrett Guppy (b. Islington 6 Mar 1848) and his descendants and compiled a book. He and wife Elizabeth (Waters b. Truro, Cornwall 28 Mar 1852) had a daughter Ada Bessie b. 3 July 1873. Ada was left in England with Aunt Louisa Gill when Thomas and Elizabeth migrated to Australia in 1874. Ada grew up in Truro and became a Milliner's Assistant. Ada married Joseph Williams on 5 Sep 1895 at the Parish Church of St George, Truro. Witnesses were Lillie Drew and Bertie Gill. Joseph Williams was the son of William Williams and his family were farmers. And there I ran into a brick wall!!! Are there any descendants of Ada Bessie and Joseph Williams out there, please?

Thomas Barrett Guppy's father is Thomas Robert Guppy b. Liverpool, Lancs in 1814 m. St Giles,London 1846 to Maria Lamcraft b. Devon 1819. Another brick wall!! This information is from Census records. I have been unable to find birth records. Is there anyone descended from a Lamcraft from Devon out there who might be able to extend these families for me???