In the book, Scots-Irish Links 1575-1725, by author David Dobson, I find the following: MCMATH, JANET, spouse of William Blair in Bellibretton, parish of Achadowie, Londonderry, formerly of Kirkland, 1677. (SRO.RD2.43.680) The reference in parenthesis translates to Scottish Record Office, Edinburgh, Register of Deeds. I am a McMath researcher and have a huge brick wall. Any information about this family might help and would be greatly appreciated. Thank you. Jim Morey