why assume Robert came from IoM - eg I have a deed - dated 7 jul 1715;Thomas Looney(Belfast, Antrim Ireland) sells for £9 10s to Wm Harrison(Cordiman) house in Ballasalla(both Abbey + Lds rent) fallen to me by death of uncle Francis Loony(Malew);witt Sylvester Cross, John Woods;court 7 Jul 1715
(sop far havn't found this Francis (a most unManx name usually at this period Irish)
+ there is at least one other deed that places related persons in Belfast around this time - Pensylvannia was a Puritan/Presbyterian state known to be attractive to those from North Ireland