I am a little late to this thread.
I have recently found out that I share YDNA with Captain Thomas Butler who led the Irish settlers out to South Africa in 1820. I am not a descendant of Captain Thomas Butler rather my Kildare Butler line and Thomas's line share a common Ancestor.
I have read through John Montgonerys book and to paraphase John he writes his mother Mary Parkes born 1762 and the wife of Captain Thomas Butler, Elizabeth, grew up together. I have Sarah Parkes Nee Boakes death as 29 Aug 1750 from Quaker records, if this is correct she cannot be the mother of Mary Parkes born 1762, even if the the death date is incorrect Sarah Parkes Nee Boakes would have been 50 years old when Mary was born.
I am told that Mary was brought up by her sister Margery Park and her husband Ephraim Boake, an interesting marriage as Margery is Ephraim Boake's niece, again the quaker records. If Ephraim Boake and Magery did bring up Mary then that puts Mary in the same area as Elizabeth the wife of Captain Thomas Butler and brings credence to Johns book.
I am interested in the Christian Name of the daughter of Thomas Bell who married Thomas Parke of Baranstown, Wicklow or any additional information.
This is an extreamly interesting bit of research
https://www.1820settlers.com/genealogy/settlershowparty.php?party=Butler