Nice to read your other message.I'm the one that did the genealogy of the Falconers of Queensbury in the book "Falconer of Halkerton."You can find a copy of it at the Institute of Jamaica.
In any case, John Falconer (born probably about 1718, died 1769), younger son of David Falconer, 4th Lord Falconer of Halkerton, came to Jamaica in 1746 or shortly before.The year may have had something to do with what is called "The '45," which was the uprising of Stuart loyalists (led by Bonnie Prince Charley) against the Hanover kings.Probably he and the rest of the family supported the Stuarts, and when the rebellion was put down, he left for Jamaica.
But in any case he definitely went to Jamaica for the same reason a lot of other wealthy British men did----to make their fortune.In a letter dated 23 Feb. 1752 to his brother, Alexander, 5th Lord (in the book), he mentions that he hoped to leave Jamaica by the time his eldest son was 5 or 6 and never return, but that he would not leave until he could get a yearly income of 1000 or 1500 pounds from his sugar plantation. His son turned 5 in late 1754, but the father was still in Jamaica in the 1760s, and his will was proved in Jamaica in 1769.
John married a rich young widow, Frances (Nairn) Lindsay, in 1749.She was the daughter of Brigadier Gen. John Nairn and his wife Frances (Williams) Nairn (who was daughter of Rowland Williams, an early Welsh soldier-settler in Jamaica) and the widow of Richard Lindsay.He came into possession of her estate in Clarendon, but it had a lot of debts.John never could pay off his creditors, so he died in relative poverty.
He had ten children by Frances, eight sons and two daughters.The two daughters never married and died in Clarendon.One son, Alexander, was a successful sugar planter in Clarendon and died there in 1804.Another son, Shickle, was a physician in Clarendon, dying in 1827, leaving three illegitimate children.Another, Nairn Lindsay, a lieutenant in the Navy, died in 1791.Four of the sons can't be traced fully to their deaths.The remaining son, Thomas Keith Falconer (baptized 26 June 1761), owned a coffee plantation in St. Elizabeth.He had several illegitimate children.One, John Craskell Falconer (1798-1875), acquired a tract (Queensbury) and was the ancestor of most of the Falconers of St. Elizabeth.