Searching for ancestors of James Aitken, born c1826 in Dundee, Forfarshire.  Father was Alexander Aitken.   James married Emily Hill in 1869 (his second marriage but I cannot find details of his first).  I have details of all their children but am having problems going back.  Can anyone help ?  James went on to live at Burton Hill, Helensburgh and was a shipowner in Glasgow (the Loch Line)