Hi Kath, Justin & Debbie,
Wow, a lot has happened since Tuesday! I shall have to try and catch up with all the info. you are kindly discovering.
Went to Kew yesterday looking at wills etc. and if I wasn't confused before, I am now

.
I found the wills of the Arthur Pyne you mentioned on Monday, Kath and his brother Richard Pyne. They were both from Ballyvolane, Cork, but also had property in Essex. Arthur's will is proved 10/12/1840 in London and mentions his wife Mary Pyne, eldest son Jasper Richard Masters Pyne, 2nd son William Masters Pyne and Daur. Frances Masters Pyne and her grandmother Frances Masters (deceased) He mentions he has six daurs. by Mary Pyne, but none others are mentioned. No mention of George, Eliza or Marianne Pyne.
His brother Richard Pyne, also from Ballyvolane, Cork, dies 27/2/1805 and requests his brother Arthur to build a vault in the church yard. He mentions his wife Sarah Pyne alias Grove, daur. Charlotte and Niece Ann Dorothea. No mention of George, Eliza or Marianne Pyne, but maybe too early anyway.
A Richard Croker Pyne dies 27/2/1805 and will is proved 28/1/1813, Master in the Royal Navy and of Spread Eagle, London, mentions wife Sarah and sister in law Emma (looks like Puzzit!),
No mention of George, Eliza or Marianne Pyne - again probably too early.
The Will of Mary Dillman Pyne, 9/7/1845, widow of St. Marylebone, Middx. has a brother John Cox Dillman Engleheart, sons Rev. Augustus Pyne, Rev. Alfred Pyne and Edward Manners Dillman Pyne and a daughter MARIANNE PYNE, although of course Marianne had married George Caldwell by then! No mention of George (Eliza had died by then)

. I notice the IGI gives her husband as Francis John Pyne.
On Augustus' marriage cert. he gives his father as JOHN Pyne, gentleman and is living in Hitcham in Bucks.
Am going to Holborn next week to look at the will with a codicil of Marianne Caldwell, which was proved 6th Feb. 1886 and am hoping for great revelations

Regards. Ros