Here is why I think Captain William Wolverston who was married to Marcella Geoghegan (father of Honora Wolverston Stapleton and Judith Wolverston Mac Gorman) could be the same man as Captain William Wolverston who died in 1731 and is buried in Kiladreney/Killadreenan Churchyard.
First, the full inscription on the Kiladreney/Kiladreenan tomb of Captain William Wolverston who died in 1731, his wife and several children, and some grandchildren was published in its entirety in the year 1892 in Irish Pedigrees; or the Origin and Stem of the Irish Nation, by John O'Hart. The full inscription read as follows: "This tombstone was erected by John Wolverston, of Cooldrass. Here lies the body of his Father, Captain William Wolverston, who died Jan. 19, 1731; and also his Mother, who died March 13, 1733; also two of their sons, Richard and William, and six of the said John's children, 3 boys and 3 girls. Here also lies the body of the above John Wolverston, who died 25 June, 1769. Aged 63 years." Notice that there is no wife "Alice"! That is an ERROR that arose when somebody tried many years later to transcribe ALL of the inscriptions in Killadreney/Kiladreenen Churchyard. On the by-then very weathered tombstone they misread "also his Mother" as "Alice his Mother." Also, the later transcriber could not even read the parts about sons Richard and William and the 6 sons of John--those parts must have been so weathered by then that they could not be made out at all.
You probably know that "Marcella" and "Margery" were the same name in Ireland then, with Marcella being the Latin version that would have been used in church registers, and Margery being the Anglicized form of the name. Thus it is very interesting that a tombstone slab for Margery Wolverston who died in 1733 turned up near the chapel built by Thomas Mac Gorman in Inchiquin. (Remember that the second wife of Thomas Mac Gorman was Judith Wolverston, daughter of Captain William Wolverston and Marcella Geoghegan.) The author of the "Inchiquin" article SPECULATES that this Margery Wolverston could have been a daughter of Captain William Wolverston, but given that her death year matches that of Captain William's wife and that Margery and Marcella are the same name, and also that the tombstone slab for Margery Wolverston appears to have been separated from the grave it once covered, I think it is quite possible that she was originally buried in her son-in-law Thomas Mac Gorman's chapel graveyard and that John Wolverston of Cooldross may have moved his mother (and possibly his father?) to the family tomb he erected in Kiladreney Graveyard years later. Here is what the Inchiquin article says about Margery's tomb slab:
"Outside the church, built against the east gable, and with its north wall on a line with the corresponding wall of the church, was some years ago a small mortuary Chapel, built in the year 1735 by Thomas Mac Gorman of Inchiquin as a burial-place for his family. Part of the wall was still standing in 1839, as can be learned from a letter of that date written by Eugene O'Curry, who calls it, incorrectly, a “sacristy,” and states that the stone with date was then fixed in the wall. It was deliberately pulled to pieces bit by bit and the stones taken to various parts of the churchyard to mark graves. Ultimately none of the structure was left but the mere foundations and two inscribed stones. From an examination which I made of these foundations a few years ago, I found that it was built somewhat out of square, the north wall being 17} feet, the east wall 17 feet, and the south wall 181 feet, outside measurement. Most of its area is now occupied by an enclosure containing the graves of the Macnamaras of Corofin, repaired in 1894-5. When the foundations were being laid for this enclosure, a tombstone was found at a considerable depth beneath the surface, on which was the following inscription :
HERE LYES YE BODY * OF MARGERY WOLVERSTON DYED * in 1733."
Margery Wolverston was a near relative (probably a daughter) of Captain William Wolverston of county Westmeath, and a member, 1 have no doubt, of that once important and influential family, the Wolverstons of Stillorgan."