I have now managed to find supporting documentation for John Evans and his family in Chubut, Argentina. I have also confirmed that he is the son of Edward Evans born in Abergele in 1836 (according to th 1861 census) and Elizabeth Hughes born abt 1835 in Llysfaen, Caernarvonshire. So far I have found nine children - Hugh, William, Evan, Jane, Elizabeth, John, Robert, Anne and Edward.
Edward and Elizabeth, John and Robert (not sure about the rest of the family) must have taken the opportunity to go to Patagonia. As yet John is the only one I have confirmed - still working on the rest.
I have found baptismal records for John and Mary's children Edward (4years and 10 months old), John (2years and 10months old) and Margaret Jane (9months old) on 13 February 1899. They were living in Dorfa-fawr, Lower Valley in Chubut, Patagonia.
In 19th June 1910 John A Evans arrived in Southampton from Santos, Brazil on the Royal Mail Steam Packet ship "Avon". The rest of the family travelled from Buenos Aires to Southamtpon on the Royal Mail Steam Packet ship Aragon arriving on 2nd July 1910 - Mary, Edward, John, Margaret, Annie, Helen, Elizbeth, Catherine and Eva.
The family then travelled to Australia - yet to find those records but I am working on it.
My main priority is now to find out who Mary Davies is, where she came from - is she a member of my Davies family. Is that where the DNA link is?
Thank you for your help in pointing me in the right direction! Ellenmaggie