Early in his career, he tended to coalminers and joined the Royal Naval Volunteer Reserve.

Cooper entered the Royal Naval Volunteer Reserve prior to the onset of the war.

In 1950, he was removed from the active list of the Royal Naval Volunteer Reserve at his own request.

At the outbreak of the war on 8 December 1939, he was commissioned into the Royal Naval Volunteer Reserve.

Clark left Cambridge at the age of 18 to join the Royal Naval Volunteer Reserve as an officer.

As war approached, in 1939, he joined the Royal Naval Volunteer Reserve.

Betts began his military service as a signalman in the Royal Naval Volunteer Reserve.

His university studies were interrupted by war service as a lieutenant in the Royal Naval Volunteer Reserve.

He served for four years, finally as a Lieutenant of the Royal Naval Volunteer Reserve.

He served as a Lieutenant in the Royal Naval Volunteer Reserve 1939-1946.