 He was succeeded as Baronet of Carr by his sons, Vice-Admiral Sir William Henry Douglas, 2nd Baronet, and General Sir Howard Douglas, 3rd Baronet, who became a General, lieutenant-governor of New Brunswick, MP for Liverpool, and Lord High Chancellor of the Ionian Islands.Both Douglastown and Douglas Township, (the village of Kennetcook, Nova Scotia and surrounding area), are named after him.The song "Caillich Odhar" was composed by Nathaniel Gow in his honor.