This certainly looks like the family I have too. My ancestor is Mary, from this family. I have a little more info for Mary Jack, if this is helpful to you.
1st Generation
1. William McBeath was born 1815 in Blackford, Perthshire and died December 15, 1892 in Tillicoultry, Clackmannan.
Occupation : Weaver
Father: William McBeath was born 1780.
Mother: 2. Mary Jack was born January 30, 1784 in Dunblane and died April 22, 1864 in Blackford, Perthshire.
2nd Generation (Parents)
2. Mary Jack was born January 30, 1784 in Dunblane and died April 22, 1864 in Blackford, Perthshire.
Father: 3. John Jack was born February 1, 1759 in Feddal, Near Braco and died January 3, 1831 in Cromlix, Dunblane.
Mother: Helen Maltman died Before 1841.
Fi