Arthur's older brother, James Dutton (1873–1949), succeeded as Baron Sherborne in 1920, allowing his siblings to use the style the Honourable.

Mabel Honor Dutton was married to Sir George James Robert Clerk of Penicuik, 9th Baronet.

He was appointed to command of the torpedo boat destroyer HMS Locust in April 1902, while she was serving in the Mediterranean.

He was appointed a Naval ADC to King George in 1926, and promoted to rear-admiral later the same year.

[3] On 12 February 1914, Dutton was married to Doriel Hay (c. 1889–1941), a daughter of Sir John Hay, 9th Baronet and Anne Milliken-Napier (a daughter of Sir Robert Milliken-Napier, 9th Baronet).