Major Coote married Rhoda Carleton Holmes, daughter of William Holmes of Worthing, Sussex at Lyminster on 22 October 1844.Register of marriages, parish of Lyminster Sussex There were no surviving children of the marriage. He died after a long illness aged 48 on 25 March 1867 and she died in England in December 1898.Personal Items from London, New Zealand Herald| volume=XXXV| issue=10942, 22 December 1898, Page 6 Their property went to his wife's family. The main homestead is now the site of a residence of Sir Peter Jackson.
