book "Wigtownshire Charters" third series Vol. LI (51). Scottish History Society. p.103.chart of the Lairds of Uchterlure. Gilbert Kennedy of Aryewlane (Glenluce), dispones in 1627 Uchturlure to Sir John McDowell / McDowall of Garthland. Sir John McDowell mc.1603 Helen Adair, dau of Ninian Adair of Kinhilt.
The book Montgomery Manuscripts pp.71,72 mentions Sir Hugh Montgomery's third son, George Montgomery who mc.1633 dau of McDowell of Garthland, Wigtownshire, Scotland. (g-dau of Ninian Adair ?) (widow of Sir Hugh Montgomery (McMath) re-married and lived at Dunskey Castle c.1642)
p.36 mentions John M'Dowel of Garthland (wife Helen Adair) 13 March 1605 appointed to take and give livery of seizin to Sir Hugh Montgomery on 5 Sep 1605 following within the six months limited by the statutes.