The following deed is the key document that opened up the Halpin tale for me. Since it's crucial to the veracity of part of what I said yesterday, I thought it only fair I transfer in full the information it contains to this thread. Where I'm unable to read something clearly, I stick square brackets around it. Otherwise the punctuation is as I found it in the deed.
Halpin, Oliver/Lambert, Wicklow 1834 4 223:
Memo of Indented Deed of Release dated 17th February 1834 between Oliver Halpin, now residing in Ostend in the Kingdom of Belgium, Esquire, of the first part, and the Reverend Lambert Watson Hepenstall of Anamoe, County Wicklow, Ireland, of the second part, reciting indenture of lease dated about the 9th September 1737 and made between Charles Monck, then of [Charlyfield], County Wicklow, Esq., and Augusta his wife, of the one part, and John Lambert, then of [Kilkroney], Wicklow, Gent, of the other part, and reciting renewal dated 30th August 1764 between Henry Monck, as eldest son and heir at law of said Charles and Augusta Monck, then deceased, and Richard Lambert as Execor of said John Lambert, deceased, reciting deed of lease and release dated the 12th and 13th February 1747 made between William Monck of the city of London, Esq., of the first part, and said John Lambert of [Kilkroney] aforesaid, of the other part, and reciting an indenture of renewal of said last therein before recited indenture of lease made between Charles Monk (sic) therein named and the said Reverend Lambert Watson Hepenstall (party thereto) of the other part and reciting that said John Lambert desired by his will dated on or about the 18th December 1749 with his brother Richard Lambert all his real and freehold estates in trust as therein mentioned who duly proved same and obtained probate thereof, and that at the time of his death left five younger children, and reciting settlement dated 26th February 1770, made between Richard Lambert execor as aforesaid, Elizabeth Lambert, one of said younger children of the first part, Patrick Halpenny, then of the city of Dublin, Gentleman, of the second part, John Lambert and Richard Lambert the younger, then of Wicklow, in the county of Wicklow, Gent, of the third part, reciting that the said Patrick Halpenny had survived his said wife and died, leaving Oliver Halfpenny (party thereto), his eldest surviving son, who thereupon took the name of Halpen and became entitled as tenant (grati in tail) to the said portions of his mother in said lands of Kilmacanogue and Stillbawn under said recited deed of settlement, and that all the estates and interests in said lands of Kilmacanogue and Stillbawn under said therein before and herein recited leases and renewals thereof, save as to the portions thereof aforesaid vested in the said Oliver Halpin (party thereto) had become and was then legally vested in said Lambert Watson Hepenstall, party thereto, and reciting that said Lambert Watson Hepenstall (cestui que ...) for which same was then held, and during the lives of such other persons or person as should forever thereafter be added, at the price or sum of £1,200 Ster.,