Marine John Bryant died in a road traffic accident.

Lance Bombardier James Dwyer died whilst on a patrol in Southern Helmand province when the vehicle he was driving struck an anti-tank mine. [Source: MOD]

Warrant Officer Kieran Farragher, attached to the Special Air Service, died in a climbing accident in Botswana. He had joined the SAS in 1973 having previously served in 95 Commando and 29 Commando Regt RA.

Marine Michael Fowler died during Operation Musketeer, the Anglo-French Invasion of Port Said, Egypt. 

Sources
AFM ROH.
Naval History.net website.

Marine Ronald Fudge, from Bristol, died during Operation Musketeer, the Anglo-French Invasion of Port Said, Egypt.  

Marine Norman Albert Gribble died when the assault craft he was on board sank during a night training exercise in Plymouth Sound. Marine Roy Thomas Moran, Commando School RM, also died.
 
Sources
AFM ROH.

Colour Sergeant Jack Halford BEM was killed during operations in the Arabian Desert whilst seconded to the Northern Frontier Regiment o

Sergeant Les Hehir died when a a US Marine Corps CH-46 Sea Knight helicopter crashed south of the Kuwait border with US and UK personnel aboard; there were no survivors.

Marine Richard Jennings, Lima Company, was one of five commandos who died during an action which resulted in the rescue of hostages taken and held at Limbang, Sarwak.

Corporal Kenneth Jones died after a short illness during his 2nd tour with 42 Commando in the Malaysia and Indonesia conflict. [Sources: AFM ROH / Online Publication Soldier an' Sailor Too.]

Sergeant Paul Laycock died in service, cause not known to this archive.

Captain James Philippson served in 29 Commando Regiment RA for 3 years as his first tour and left 29 for 7 Para RHA. He died during operations in Afghanistan with 7 RHA.

Trooper Adrian Powell died in a road traffic collision whilst serving with the SAS. He had previously served with  7 and 148 Btys. of 29 Commando Regt. RA, and 7 RHA.  He died when the vehicle in which he was travelling overturned while on way to training exercises near Nairobi in Kenya.

Marine Benjamin Reddy, 'K' Company, died when his unit came under enemy fire during a deliberate clearance operation in the Kajaki area of Helmand Province.

Marine Harry Rose died in Ipoh General Hospital as a result of an accidental gunshot wound. He was originally buried at Batu Gajah Cemetery but was later exhumed and cremated at Sek Keng Cheng Crematorium, Kuala Lumpur and his ashes returned to the UK.

Lieutenant Ian Smith died in service, cause unknown to this archive [Source: AFM ROH].

Marine Leslie Turner, HQ 3 Commando Bde. RM,  was killed when the truck he was in surprised bandits in the act of robbing a bus in the Gopeng-Kampar hills, Malaya. Buried in Batu Gajah (later exhumed, cremated at Sek Keng Cheng Crematorium, Kuala Lumpur and ashes returned to UK).

Major Jason Ward,  UK Landing Force Command Support Group, died in a helicopter crash.