Post war he became the Welsh President of the British Legion, a Deputy Lieutenant for Merionethshire and a Justice of the Peace.

He was the second son of John and Elinor Anne Vaughan, of a family that could trace their roots back to a line of Welsh princes in the Middle Ages.

[7] In South Africa, Vaughan was the senior aide-de-camp and deputy assistant adjutant-general to Lieutenant-General John French, the commander of the Cavalry Division, and was mentioned in dispatches in February 1900,[8] and promoted to brevet major on 29 November 1900.

By March 1902, Vaughan was acting as the intelligence officer for a column consisting of the 7th Hussars and the 2nd Dragoon Guards (Queen's Bays).

However, for his conduct during the campaign, he was made a Companion of the Distinguished Service Order (DSO)[9] and twice more mentioned in dispatches (including one dated 1 June 1902, where he is commended for valuable work in the action at Holspruit 1 April 1902[10]).

[2][11] He left Cape Town on the SS Roslin Castle in late May 1902,[12] and arrived home the following month.

[20] Another sport Vaughan participated in was fox hunting, he even included it on the syllabus of the Cavalry School under the pretext "memory training".

[21] It was while he was at the Cavalry School that he married Louisa Evelyn, 22 October 1913, the eldest daughter of a Captain J. Stewart of Cardiganshire.