Hello Andid, I followed up your mention of your DNA on My Heritage, and it seems we may share some DNA; at least, I don't know about your test, but I share a small amount with a Winifred Wilson, whose public tree includes Frederick Pinkerton and Martha Wilson. I have a first cousin twice removed Frederick George Linn Pinkerton, b. 1868 in Banbridge, co. Down (my Pinkertons are otherwise almost entirely from Ballymoney area). If this isn't your Frederick, The relationship could also of course be through the Wilsons?