Hume's wife Mary died on 30 March 1890 and news of her death reached him just as he reached London on 1 April 1890. Their only daughter Maria Jane Burnley ("Minnie") (1854–1927) had married Ross Scott at Shimla on 28 December 1881. Maria became a member of the Hermetic Order of the Golden Dawn, another occult movement, after moving to England. Ross Scott had been the founding secretary of the Simla Eclectic Theosophical Society, and was sometime Judicial Commissioner of Oudh before his death in 1908. Hume's grandson Allan Hume Scott served with the Royal Engineers in India.