 In 1903 Morton married Evelyn Wilson-Todd, daughter of Sir William Wilson-Todd of Halnaby Hall, and Tranby Park, Yorkshire, MP for Howdenshire.He divided his time between residences in Scotland (at North Berwick until his marriage and at Balabraes House, Ayton, Berwickshire thereafter), and Eaton Place in London.He died at his London home in June 1913, aged 77.