Catherine Sangster, unmarried, had a son in Kelso, Roxburghshire in July 1799. The child was called Lockhart Baillie and the acknowledged father was George Baillie of Jerviswood and Mellerstain, father of the 10th Earl of Haddington. There is plenty of information about him but nothing on Catherine Sangster, which is not a name local to the Kelso area. Her name on Lockhart's death certificate is Catherine Harvey nee Sangster. Cannot find a record of her birth, marriage to Harvey or death. Any help most welcome as we've reached a dead end!