The Baikie Lairds' pedigree is in Burke's Landed Gentry in an edition from the 1950(?).. maybe you could find a connection by "going the wrong way" (You're usually meant to go backwards into family histories, not forwards. However the mname and period sounds right, though the Margeret Baikie I've read about frim that time married a James Dover from Keswick in the Lake District.
Good luck anyway..