3) John Hamilton ~ Jean ----- (of Orbistoun)

{Website: Scottish Roots, by John R. Hamilton} Gavin Hamilton, before mentioned younger son of Sir James Hamilton...married Jean Muirhead and was the father of ... John... of whom John left issue by his wife Jean Muirhead Hamilton of Gavin, Archibald, John, Patrick, David, and others...

{Nisbet p 262} He does not indeed call his Children his own Sons, when he diÉpones the Lands of OrbiÉtoun to... and failing him, toJohn Hamilton their carnal Brother;... all Brothers to one another in the 1468 (a).

(Nisbetís note #a) This Charter is afterward confirmed under the Great Seal in the publick Archives.