She married James Pirie at Parish of Seafield, Banffshire, Scotland, on 18 November 1858.1 As of 18 November 1858, her married name was Margaret Pirie. She was the informant for Alexander Pirie's birth at 80 Portknockie, Banffshire, Scotland, on 19 December 1886.2 She was the informant for, and present at, Grace Wood's death at Portknockie, Banffshire, Scotland, on 13 January 1898.3
Children of Margaret McKay and James Pirie
- [S1973] LDS Church, International Genealogical Index, "James Pirie, male. Spouse: Margaret McKay. Marriage: 18 NOV 1858, Seafield, Banff, Scotland."
- [S2375] Alexander Pirie, Register of Births in the District of Seafield in the County of Banff, "Alexander Pirie, 1886, December Nineteenth 2h 0m A.M. at 80 Portknockie, Seafield (Rathven), Male. Father: James Pirie "Coull", Fisherman. Mother: Margaret Pirie M. S. McKay, married 1858 November 18th in Seafield. Informant: Margaret Pirie, Mother, James McIntyre Registrar Witness. Registered: 1887, January 9th at Seafield Manse, James McIntyre, Registrar."
- [S1972] Grace Wood, Register of Deaths in the District of Seafield in the County of Banff, "Grace Wood (Single), died 1898, January Thirteenth 6h 0m P.M. at Portknockie, Seafield (Rathven), Female, 13 days. Father: William Wood "Park" Fisherman, Mother: Grace Wood M.S. Pirie "Coull". Cause of death: Acute congestion of lungs, 3 Days, as cert. by S. Clark M.D.C.M. Informant: Margaret Pirie, Grandmother (Present), James McIntyre Registrar Witness. Registered: 1898, January 13th at Manse of Seafield, James McIntyre, Registrar."