I am not sure, but the book that some are discussing might be "The Hutchinson Bequest" which was compiled through research done by J. A. I. McCurdy. If so, copies of it may be found in the Linenhall Library, Belfast, the N. I. Family History Society, the Irish Room, Coleraine Library, and the N.E.E.L.B. County Library, Ballymena.
I was interested in the Ballintoy Stewarts connection to the Macaulay family of Cushendall as Capt. (later Major) Alexander Macaulay had married Alice Stewart, daughter of Ninion Stewart, younger and his wife, Jane McCullough. The Macaulays were also closely related through marriage to the Dobbs family.
However, not only had Alexander Macaulay married a Ballintoy Stewart, but his daughter Ealse (Alice) most likely had as well. She was married to Capt. Robert Stewart whom I really know not much about except that she and Robert had issue a son, James, who had issue James, Jr., Dorothea, and Catherine. Seems James, Jr.had a son, Robert; Catherine married George Longworth and their descendants became the the family of Longworth-Dames; and Dorthea married Thomas Dawson and had a daughter, Helena.
There are also other Macaulay marriages that I would like more information on besides the above mentioned Captain Robert Stewart's. For example, according to Eustace's Abstract of Wills, George Stewart of Red Bay, gent. who had died sometime between 1730 and 1737 was married in 1712 to Sheely McAulay. She and George had issue one son, Francis Stewart. The family of George Stewart is not mentioned in the Hutchinson Bequest.
The Macaulay family of Cushendall is descended from the Macaulay family of Ardincaple, Scotland. The last male heir of this family passed away in 1893, so I am not sure what happened to whatever genealogical records this family may have kept. If there are any in existence, I would like to know.