He was survived by his wife, daughter and son. Lady Masson did valuable work during World War I, and was created CBE in 1918. The son, James Irvine Orme Masson, born at Melbourne in 1887, had a distinguished academic career, becoming Vice-Chancellor of the University of Sheffield in 1938, and elected a Fellow of the Royal Society in 1939. Masson published "Three Centuries of Chemistry" in 1925. A daughter, Flora Marjorie (later Mrs W. E. Bassett), published in 1940, "The Governor's Lady", and another daughter, Elsie Rosaline (d. 1935), who married the distinguished anthropologist, Bronislaw Malinowski, was also a writer; she published "An Untamed Territory" in 1915.