Here is what I have:
1. Thomas Douglass m. 1785 Elizabeth Ford(e) of Seaforde, Down
2. Charles Matthew Douglas, Esq., D.L., d. 1880
2. Elizabeth Douglas m. Rev. Samuel Blacker--Blacker-Douglas
2. Theodosia Helena Douglas m. Rev. 1812 Rev. William Brownlow Forde
Charles Douglas of Grace Hall was a Director of the Lurgan Gas Co. and owner of 2,791 acres of land.
Now my problem: Who were the parents of the above mentioned Thomas Douglass? Could this Thomas Douglas be the son Margaret Cuppage and Surgeon William Douglas? See below:
1. Rev. Alexander Macaulay m. Mildred Reid, dau of Rev. Adam Reid
2. Mary Macaulay m. 1726 John Cuppage
3. Rev. Alexander Cuppage m. Mary Boyd, of the Ballintoy Boyds
3. Sarah Cuppage m. Rev. James Moore, of the Moores of Moore's Fort, Ballymoney
3. Mary Cuppage m. Maj. Charles Hill
3. Alicia Cuppage m. Rev. Lindsay Hall (c.1752-1812) Unproven but my guess would be that he is somehow related to the Halls of Narrow Water.
3. Margaret Cuppage married Surgeon William Douglas and had,
4. James Douglas
4. Adam Douglas
4. Thomas Douglas
4. William Douglas
4. Mary Douglas
4. Jane Douglas
4. Margaretta Douglas
4. Lenora Douglas
4. Anna Douglas
4. Catherine Douglas
*One descendant of this family was Dr John Cuppage Douglas who married into the Fulton family. He was related to James and Jane Douglas who were related to Samuel Watts, of Lurgan, brewer.
3. Elizabeth Cuppage m. Surgeon William McCurdy
3. Mildred Cuppage m. Richard Lloyd, linen draper, son of Rev. Richard Lloyd
3. Catherine Cuppage m. 1762 John Greer, Deputy Governor of Cos. Armagh and Tyrone