My Great Grandfather John Edgar, born 1928, was married to Mary Jane Dennison on 10th Jan 1860. Their son Robert, born on 28th April 1883 married Agnes McCully on 5th Oct 1920. Robert's father John Edgar died on 10th October 1913 aged 85. John's wife Mary Jane died in 1917 aged 73 which would make her birth around 1844. However, the 1901 Census and 1911 Census record Mary Jane's age as 60 and 70 respectively making her birth around 1841.
Mary Jane's father was John Dennison and I have a record of John Dennison's marriage to Mary Sprott on 19th May 1937 at 1st Dromara Presbyterian Church which the Edgar's also attended until the opening of the Reformed Presbyterian Church in 1874. Trying to confirm if Mary Sprott was Mary Jane Dennison's mother. Also have a record that Grace Faris / Faires / Ferris, wife of Robert Dennison had a son John Dennison born on 1st Nov 1817. Trying to confirm this is the same John Dennison as Mary Jane's father.
On the Edgar side of the family, I know that John Edgar's father was Hamilton Edgar and was married to Mary Sloan but Hamilton passed away in the early to mid-30's as Mary Sloan got remarried to James Coulter, also of Lower Moybrick, in 1836. Mary Coulter died in October 1883 and the death registration was signed by her son John Edgar.