Hello Kathryn. Thanks for your reply and for reviving this old post. Do you have a connection to this family?
It's been so long since I delved into this family that I had to go back over my messy old notes to refresh my memory and it's still a bit hazy.

I did manage to look at the PR's last year. I've also met a couple of distant 'cousins'.
I have confirmed the marriage of Thomas Whitfield and Elizabeth Clemme/nt on 16 Jul 1801 in West Acklam Yorkshire. Thomas had an older brother John, who also married in West Acklam.
Children born to Thomas Whitfiled and Elizabeth Clemmet are:
Thomas Whitfield chr 5 Jun 1803 in Stainton in Cleveland
Ann 1805
Elizabeth 1807
Ralph 1809
John 1811
Rachel 1813
Mary 1815
Margaret 1817
Hannah 1819
Isabella 1821
Plus another son born before 1809, presumably between their marriage in 1801 and birth of first known son Thomas in 1803.
(phew)
My brick wall is now Thomas Whitfield's father Ralph Whitfiled b 1751ish. He married Thomas's mother Ann Redman on 16 Jun 1777 in Marton. They were "both of this parish".
Ralph was born about 1751 possibly in Marton or elsewhere. There is no baptism for him in the Marton PR's. Several online trees (I believe originating from a single source) have his father as Matthew Whitfield b 1710 in Wolsingham and his mother as Anne Vasey. This line leads back to landed gentry.
I am not convinced it is correct as there IS another Ralph Whitfield of the right age (sorry am rusty with this line and can't recall where he is from) with humbler origins. I'm not sure if this may be wishful thinking on the part of other researchers. A distant cousin has a tree made up by another ancestor in the 1920's I think, which tallies with what I and others have discovered, and he specifically mentions that Ralph b1751 is our unproven link. A 'cousin' says she has traced the other Ralph who is elsewhere while ours is in Marton, but I have yet to get round to proving this for myself.
Thanks for the offer to type up the Marton PR's, but I think I have extracted everything I need for the time being. But if you can find the birth of Ralph Whitfield, somewhere, in about 1751 that would be brilliant!
