I have a Richard Dilley born in Campton in 1695 who married a Mary Turner in Campton in 1715. I believe they both died in Henlow.
I agree that it looks likely that this is the Richard Dilley, carrier, who was buried in Henlow on 12 Feb 1736/7, and the fact that they moved to Henlow after baptising one daughter in Campton might indicate that Mary was from Henlow, particularly as I can find no Turners in Campton at around that time. They also named a daughter Dorcas in Henlow, which was the name of the mother of Richard Dilley baptised in Campton in 1695.
The big question must be which Mary Turner was she. The one baptised 9 Jan 1691/2, daughter of Benjamin & Ann, or the one baptised on 13 Mar 1695/6 the daughter of John & Elizabeth. Neither was buried as an infant so the assumption must be that both lived to adulthood.
As I said in one of my earlier posts, the Earl researchers claim the 1696 Mary as having married John Earl at Bedford St Paul on 29 Sept 1721. Elizabeth's parents, John Turner and Elizabeth Cooper, also married at Bedford St Paul, on 24 Oct 1674, despite both coming from Henlow, where they then baptised all their children. Perhaps it was a family thing to marry in Bedford! I haven't done any detailed research myself on this family.
Which I suppose then leaves the 1692 Mary as being the one who married Richard Dilley in Campton in 1715. On chronological grounds it's a better fit although it makes Mary older than Richard, but the ages of the two Marys makes either marriage quite feasible. Unfortunately neither couple baptised a son Benjamin which might have given a clue.
BLARS hold wills of John Turner snr, blacksmith 1677/57, and of more direct relevance John Turner blacksmith 1700/106 and John Turner blacksmith 1748-9/67. The 1700 one is, I believe, that of Mary's father, but I doubt if it can shed any light on who his four year daughter subsequently married!
So I have to come clean and say that I just don't know which Mary she was. It's a 50/50 call. It's possible that John and Benjamin Turner were connected, possibly even siblings, but it's a toss up who Mary's mother was, and could end up with you researching the wrong line. Elizabeth is by far the more attractive option, but it might be the wrong family!
David