William and Jane (born Scotland perhaps Castlecary parish but not Liberton) had number of sons all born Scotland, family immigrated on Dolphin from Greenock 1753 to Maine. Some of family settled 1763 on Deer Isle. Left for NB 1783, but kept lands in D.I. and resettled there after oldest gen passed. Given names repeated among cousins frequently so one gets confused quickly. My grandfather, Charles R. Greenlaw (Wm & Jane, Jonathan, Richard, Joseph, Joseph) researched lots in period 1920 to his death 1963 and produced many charts which have been updated and corrected by others. Contact Stephen Snell for latest info on access to them (on-line somewhere). CRG's middle son, late Dr. Colin Torrey Greenlaw, carried on by trying to isolate origin of family in Scotland. He found Liberton family but names etc didn't fit. He later found Castlecary families where names of immigrants do seem to fit - at least fit in part given infant mortality and incomplete records. I have somewhere the Castlecary info in detail. Dr. CTG died in 1991. His stepdaughter has his files since I did not have space for them.
Descendants of this Wm & Jane and sons are fairly well tabulated - contact Snell who has some postings in this series.