Lance Corporal Bentley was was reported missing between 25 and 28 February 1941 during operations on the occupied Greek island of Kastellorizo, later found to be a prisoner of war 

Corporal Boast was reported missing 2 June 1941 during operations in Crete. Later found to have been captured and transported to Stalag 383.
 
Sources
Casualty Lists / National Archives file WO417/27.
Prisoners of War / National Archives file WO392/1.

• 1944 reported no longer a prisoner of war [2].

Sources
[1] Casualty Lists WO417/23.

Corporal John Busby from Hull was reported in the Casualty Lists as attached to 'D' Bn Layforce [1] at the time of his death through illness in the Middle East [2][3].

Private Ernest Dawes died during operations on the Greek island of Kastellorizo. 

50 Me Cdo Casualty List 25th-28th Feb. 1941 in Crete - Ref. GRO2E/1188/69C / National Archives WO361/124.
The Middle East Commandos, author Charles Messenger.

Private Glanville Drewitt, 52 Middle East Commando, was reported missing 2 June 1941 during operations in Crete, later found to be a prisoner of war. He also served in 50 Middle East Commando. Post war member of the Commando Association, London Branch.

Trooper Leslie England was reported missing later presumed killed in action during operations on the enemy occupied Greek island of Kastellorizo. He has no known grave [1][1a][1b]. 
26 October 1932 attested into the Royal Tank Corps [2]. 
5 November 1939 transferred to the Royal Household Cavalry [2].

Private Farmer was reported missing between 25 and 28 February 1941 during operations on the occupied Greek island of Kastellorizo (Operation Abstention), later found to be a prisoner of war. 

Private Arthur Hamper was shot and killed when attempting to escape from Stalag 4F whilst a prisoner of war in German hands. He was awarded a posthumous Mention in Despatches in recognition of gallant and distinguished service.

Private Francis Hill was reported missing during operations at Crete on 2 June 1941 and later found to be a prisoner of war at Stalag 3D. 

Post war member of the Commando Association from Holland.

Sources
Commando Association newsletter 93.

Corporal Robert Imperato was reported missing during operations at Crete on 2 June 1941, later found to be a prisoner of war from 1 June 1941.

Trooper William Jones was reported missing between 25 and 28 February 1941 during operations on the occupied Greek island of Kastellorizo, later found to be a prisoner of war.

Trooper Jesse Laker was reported missing 2 June 1941 during operations in the Middle East, later found to be a prisoner of war. On this date his Commando were engaged in operations in Crete.
 
Sources
Casualty Lists / National archives files WO417/42, WO417/94.
Prisoners of War / National Archives files WO392/1 and WO392/11 (Stalag 4G).

Private R. Linsdell was reported missing 2 June 1941 during operations in Crete. Later reported no longer missing.
 
Sources
Casualty Lists / National Archives files WO417/27 and WO417/34.

Trooper Arthur Lockington died whilst assigned from the Commando to Middle East Detachment 2, later redesignated 2nd Special Service Detachment (SSD 2), in Burma.

Some additional detail can be found on this link to a message on our Forum.

Corporal Terence Malone, 'D' Bn., Layforce, was reported missing 2 June 1941 during operations in Crete, later found to be a prisoner of war.

Private Kenneth Marson, 'D' Bn. Layforce, was reported missing 2 June 1941 during operations on Crete, later found to be a prisoner of war.
 
Sources
Casualty Lists / National Archives files WO417/34 and WO417/94
Prisoners of War / National Archives files WO3921/1 (Stalag 3D) and WO392/11 (Stalag 4G).

Private James Mather was reported missing 2 June 1941 during operations in Crete and later found to be a prisoner of war [1]. He had been imprisoned at Stalag 4C, a prisoner of war camp at Wistritz bei Teplitz, Sudetenland ( part of former Czechoslovakia) [2a]. He died shortly after his release in 1945 due to ill treatment whilst a prisoner [3]. 

Private Arthur McGill was reported missing 2 June 1941 during operations in Crete, later found to be a prisoner of war. 

Private J. Mena, a Spanish volunteer attached to 'D' Bn. Layforce, was reported as a prisoner of war in German hands (in Germany)  after operations in Crete 1941. In 1943 he is reported as repatriated to the UK.
 
Sources
Casualty Lists 1939-45 / National Archives files WO417/35 and WO417/69. 

Source: 50 Me Cdo Casualty List 25th-28th Feb. 1941 in Crete - Ref. GRO2E/1188/69C / National Archives WO361/124.

• 2 June 1941 Crete reported missing, later found to be a prisoner of war [3][4].

Private Patrick was wounded between 25 and 28 February 1941 during operations on the occupied Greek island of Kastellorizo. 
 
Sources
[1] Casualty Lists WO417/23.
[2] 50 Me Cdo Casualty List 25th-28th Feb. 1941 in Crete (War Office Oct 1941) Ref. GRO2E/1188/69C.

Notes
Source [1] initials G.A. Source [2] initial J.

Private Rough, 'D' Bn., Layforce, was reported missing 2 June 1941 during operations at Crete. Later found to have been captured and transported to Stalag 4C.
 
Sources
Casualty Lists / National Archives file WO417/28.
Prisoners of War / National Archives file WO392/1.

Lance Corporal Shelton was reported missing during operations at Crete on 2 June 1941 and later found to be a prisoner of war at Stalag 4B. 

Sources
Casualty Lists / National Archives file WO417/27 and WO417/49.
Prisoners of War Lists / National Archives file WO3921/1.

Lance Corporal J. Smith, 'D' Bn. Layforce, was reported missing 2 June 1941 during operations on Crete, later found to be a prisoner of war.
 
Sources
Casualty Lists / National Archives files WO417/28, WO417/32, WO417/94.
Prisoners of War / National Archives files WO3921/1 and WO392/11.

Corporal Squier was reported missing 2 June 1941 during operations at Crete. He was later found to have been taken prisoner and transported to Stalag 8A.
 
Sources
Casualty Lists / National Archives files WO417/29 and WO417/31.
Prisoners of War Lists / National Archives file WO392/11.

• 1 April to 30 July 1939 (Second Lieutenant) (2nd Bn. The Leicestershire Regiment) awarded the Military Cross for distinguished services rendered in the field in connection with operations in Palestine.

Private Thomas was reported missing between 25 and 28 February 1941 during operations on the occupied Greek island of Kastellorizo, later reported prisoner of war.
 
Sources
[1] Casualty Lists WO417/23, WO417/89, and WO417/94.
[2] Prisoners of War / National Archives file WO392/1 and WO392/21.

Private Trusty, 'D' Bn., Layforce, was reported missing 2 June 1941 during operations at Crete. Later found to have been captured and transported to Stalag 3D.
 
Sources
Casualty Lists / National Archives file WO417/28.
Prisoners of War / National Archives file WO392/1.

Corporal Turner was reported missing 2 June 1941 during operations in Crete. Later found to have been captured and transported to Stalag 344.

Corporal Waldock was reported missing on 2nd June 1941 during operations in Crete. Later found to have been captured and transported to Stalag 4F.

Sources
Casualty Lists / National Archives file WO417/27.
Prisoners of War / National Archives file WO392/11.

Lance Corporal Williamson, 'D' Bn., Layforce, was reported missing 2 June 1941 during operations at Crete. Later found to have been captured and transported to Stalag 383.
 
Sources
Casualty Lists / National Archives file WO417/28.
Prisoners of War / National Archives file WO392/1.