This is the family of the McGregor's that Mary Boyd married into. You will note that no known daughter of Mary and David McGregor is names Marion after David's mother. So could Mary's mother be Elizabeth ???? who married an Mr Boyd? "McGREGOR FAMILY TREE This is constructed from information in Parker's History of Londonderry, Young's Fighters of Derry, the Burnside family tree (T.2707 P.R.O.N.I.), and a letter from Professor F. J. Simmons (a descendant). This tree includes the noted Rev. James McGregor, minister of Aghadowey, who emigrated to Boston in 1718 with a number of his congregation and founded there the town of Nutfield, New Hampshire, now called Londonderry, NH. A certain Captain McGregor of Magilligan had family: 1. Elisabeth married Captain Lachan McCurdy. 2. Alexander of Maynock, who had a daughter: A. Mary, married Bingham and had a daughter: (a) Sarah Bingham married Samuel Burnside (1729-1805). 3. Rev. James McGregor (1677-1729) married October, 1706, in Londonderry, Ireland, Marion, daughter of David Cargill and had family: A. Robert. B. Daniel. C. Rev. David McGregor (1709-1777), minister of the West Parish, Londonderry, married Mary Boyd (an orphan brought up by his mother) and had family: (a) David, died in infancy. (b) Colonel Robert, married Elizabeth, daughter of General George Reid, and was A.D.C. to General Stark. They had nine children: David, George, Mary Ann (married 1832 Rev. John R. Adams of West Parish, Londonderry), Maria, Eliza, Robert, James, John, Daniel. (c) David. (d) James, had store in Londonderry, and had six children: Daniel, James, Stephen, Jane, Mary, Nancy. (e) Elizabeth. (f) Margaret, married James Rogers. (g) Mary Anne, married James Hopkins. (h) Jane, married Robert Hunter. (i) Mary, married Robert Means of Amherst. D. Jane. E. Alexander, married and had daughter: (a) Susannah (1742-1817), married 1762 Thomas Burnside (1735-1798). A grandson was Ambrose Everett Burnside, a Major-General [for the Union] in the American Civil War. F. Mary, married James Paul of Londonderry and had daughter: (a) Mary, married John Wier. This is the line of descent of Professor F. J, Simmons. G. Elizabeth. H. Margaret. I. John. J. James. Mike Boyd Historical Committee, HBS