Thanks to you, Jomot, this family is beginning to make some sense. I wasn't finding verification of anything before and what I was finding on different trees made no sense. I was seeing marriage dates of 1814 in Killinchy or 1816 or 1823 in Borgue. And there was no way I was believing that Thomas J. Johnston was belonging to this couple but now I see it is possible. When I looked at the info on familysearch, and got the names of children born before 1829, and went to Scotland's People and found the deaths of Jane McMaster Scott in 1872, and John Johnston born abt 1831, died 1899, and the parents names were given as Edward Johnston and Margaret Muir/Moore, I was elated. Thanks so much.
And thank you Neale1961. I have verification from Scotland's People of the parents of Edward Johnston who died 1867 and his wife Margaret Muir who died 1887. Edward's parents were Edward Johnston and Jane Miller/Millar. The only couple that I found on trees previously with that couple, as parents of Edward Jr., had emigrated to USA in 1801 so no way they had son Edward abt 1795 and left him behind when they went to the USA. Must be two couples with the same names.
Thomas J. Johnston died Dec 28, 1901 at his home 6 miles west of Clifton, Danforth Township, Iroquois Co., Illinois as per his obit and according to the Iroquois Co. Genealogical Society, he was born Feb 16, 1818, Killinchy, Co. Down, father Edward. So now I believe.
I did write to the Killinchy Presbyterian Church a couple days ago regarding the marriage and Thomas' baptism, but they haven't replied as yet.
Thank you, thank you, thank you, immensely for your help in sorting this out.
Peggy