Hi Fiona, great to read your post, it sounds like we share the same GGrand-father (Charles Davy) .. I am a descendent of Walters Humphrey's younger brother - Harold, who married Ruth Delahaye.
I recently located a photo-copy of Joan Coburns family history - an interesting read (particularly about Charles Red Hair - because my father and I also share this trait !). Our family migrated to Australia in 1981, I was born in Rotorua.
My direct email is firstname.lastname@example.org
if you would like to make contact. Cheers. Michael Charles Davy (jnr). PS i would be interested to hear how you got on in Wales? I note from Joans writings that Leyson was Jonathons and Mary's 4th son..? would be great to know what happened to the others?