Hugh Thompson’s wife (Grace Davis) died at the age of 58 on 1 March 1935 in Idaho Falls. Hugh Thompson was 56 years old at the time and they had been married for 33 years.
On 11 July 1939, when Hugh Thompson was 60 years old, his brother John Thompson died at the age of 68 in Mountain Home, Duchesne, Utah, United States.
Hugh Thompson died at the age of 69 on 14 March 1948 in Harlem, Blaine, Montana, United States. He was buried 18 March 1948 at Harlem Cemetery, which is located on Turner Road in Harlem.