Hello Larry, I stumbled on this site by chance whilst attempting some family history research.
I am married to the granddaughter of Mary Anne HARPER's brother James WHYTE (born 1908) who was a very close boyhoodmate of his cousin David HARPER son of Mary Anne, (#4 in your E-mail). I think my wife met David HARPER once when he visited Ulster. James WHYTE is now deceased but he had very fond memories of the Harper family. There are 3 children still living a son and daughter in Ballywalter and my wife here in Bangor about 15 miles away.
Regards from Sunny Norn Irn Tony Butcher (A Englishman, or "blow-in" as they say round these parts but now Ulsterman by marriage.)