Brigitmac
My Grandparents were from North Lancashire, Cheshire, Monmouthshire and West Yorkshire.
Great Grandparents were from the same areas which is why I am sure it is the Yorkshire in origin as it was only through WW1 that my Lancashire and Monmouthshire Grandparents met in Monmouth and my Yorkshire and Cheshire Grandparents met in Cheshire. Hence no interaction between Great Grandparents could have taken place.
It was my Yorkshire/Cheshire Grandparents that went to Canada and my Mother and her Sister were born there hence no doubt whatsoever as to my own Maternal Grandparents being blood relatives, I even look like my Yorkshire born Grandfather hence I have no doubt that my Great Grandparents are my blood relatives.
As I said prior my Great Grandmother had a Brother and my 3rd Cousin once removed is descended from him, we are in regular contact and she and I share 91cM DNA none of my DNA matches that follows show up in her DNA Matches
The five tree linked DNA matches I have share the name Belcher (originally from Ireland) and all are Yorkshire born and their cM is 68, 104, 121, 148, & 364. There is a sixth who has the surname but is not yet linked to the other five & has 46cM, additionally there are two others with lower cM who also have Belcher’s in their trees.
To say that I am Belchered Out is an understatement ;-)
Thanks for the marriages tip I will hunt that out later.
PS
I have even written out the tree on paper of the five matches to try to make sense of it, ...... and failed