I noted down this article a few years ago. I have no idea how accurate it is.
Northern Whig and Belfast Post, 20th Dec 1835:
BELFAST OF BYGONE DAYS ... James, the fourth and youngest son, is also still well remembered. He married Eliza, daughter of James [or John?] Cunningham of Macedon by his wife, Maria, daughter of William Simms of The Grove, and through that marriage became allied with a group of inter-related familes of exceptional local interest. His wife's grandfather was the well known "Captain" John Cunningham -- in early days he had been an owning shipmaster -- who had purchased Macedon in 1813. He was the third son of Hugh Cunningham by his wife, Agnes Simms, and there is substantial evidence that this Hugh was the brother of the well-known Waddell Cunningham, who, in 1765, married Miss Margaret Hyde, of Hydepark, his brother-in-law being Captain Robert Batt and Thomas Gregg of Ballymenoch. The brothers Hugh and Waddell Cunningham -- as I take them to have been -- were sons of Ernest Cunningham by his wife, Mary Waddell, of Islanderry.
