I can't get past my great great grandfather James Crighton born at Kirriemuir, Angus, 14 February 1857, the illegitimate son of Charles Crighton and Agnes Stewart, and died in Dundee, 17 May 1926. 1861 census shows him age 4 and living in Kirriemuir with his uncle and aunt, George and Elizabeth Stewart. His marriage certificate gives his mother's name as Agens Crighton, but I can find no trace at all of his parents, other than that they both seem still to be alive in 1879 but dead by 1926, so I would really appreciate any help.