Middle names from Andrew Frew

In the July to September 1923 birth index Leonard E. C. Sutton, Lambeth district, London, mother’s maiden name Symondson, volume 1d, page 647.

Parish Records St. James the Apostle, Knatchbull Road, Lambeth, London
Born July 3 1923, baptism August 5 1923 Leonard Edwin Charles Sutton, parents Leonard Henry Sutton and Florence Alice Sutton, abode 77 Holland Road, father is an optical frame maker

1939 England and Wales Register
13 Melfort Road, Croydon
1. Leonard Sutton, born May 7 1897, married, tortishell and imitation ???? spectacle frame maker
2. Eva M. Sutton, born February 12 1896, married, domestic housewife unpaid
[Leonard must have remarried]
3. Leonard E. C? Sutton, born July 3 1923 , single, camera mechanic
4. Winifred Sutton [later changed to White], born December 31 1924, single, at school

World War II Home Guard Records
Leonard Edwin Charles Sutton, No. 383, Company C, 62nd (Norbury) Battalion
13 Melfort Road, Thornton Heath
Date of birth July 3 1923
Next of Kin: Father same address
Later penciled in February 15 1943 Army

Marriage Certificate -from Andrew Frew shared on Ancestry
Church of the English Martyrs, Mitcham Lane, Stretham, Wandsworth
Marriage August 7 1948
Leonard Edwin Charles Sutton, age 25, bachelor, press photographer, residence 13 Melfort Road, Thornton Heath, father Leonard Henry Sutton, manufacturing optician and
Margaret Devlin, age 22, spinster, school teacher, residence 88 Gleneldon Road Streatham, father Joseph Devlin, building contractor

In the December 1996 death index Leonard Edwin C. Sutton, age 73 born July 3 1923, registered at Bromley Registration district, Greater London, Register B29, 2221B district entry 226.

Information from Andrew Frew
In World War II he [was a photographer in the British Army and] some of his assignments were one of the cameramen when Bergen-Belson was liberated, took film of Himmler right after his suicide, filmed and was an official witness at the war crimes trials in Singapore including executions of Japanese who were found guilty.
After the war he was a photographer for the Picture Post and cited as Len or Carl Sutton.

Link to audio interview from the Imperial War Museum: https://www.iwm.org.uk/collections/item/object/80004262
Also from the recordings.
He started his service as a private and ended his service as a captain.
He was in the field starting from D-day.
He filmed the 1944 Christmas message by General Montgomery.
He photographed and got to know Lord Mountbatten.
Description of the recordings from the Imperial War Museum
Object description
British NCO served as cameraman with No 5 Army Film and Photographic Unit in North West Europe, 1944-1945; officer served with No 9 Section Army Film and Photographic Unit in Singapore, Malaya, 1945-1946
Content description
REEL 1 Background in London and Thornton Heath, GB, 1923-1943: family; early interest in photography; leaving school, 1937; apprenticeship with Zeiss 1936-1939; declaration of Second World War, 3/9/1939; question of reserved occupation and attempts to enlist; training and duties with 62nd (Norbury) Bn Surrey Home Guard including attitude to discipline. Aspects of period as private and artificer with Northumberland Fusiliers and Royal Electrical and Mechanical Engineers in GB, 1943: call-up for military service, 2/1943; basic training with Northumberland Fusiliers, 2/1943; transfer to and training as artificer with Royal Electrical and Mechanical Engineers; applying to join Army Film and Photographic Unit. Aspects of period with Headquarters, Army Film and Photographic Unit, Pinewood Studios in GB, 1943-1944: interview and posting to Pinewood Studios; memories of Major Houghton; background of recruits; training. REEL 2 Continues: living conditions; discipline; dress code; drill; training as cameraman and attending battle school; relations with officers; attitude to army discipline; amusing story of lecture on Super Ikonta; further details of training as cameraman and stills photographer; film exercises; opinion of training; question of joining union; comparison of various stills and cine-cameras; specialist role as camera mechanic; leave; role in making improvements to cameras. REEL 3 Continues: Recollections of operations as NCO with No 5 Army Film and Photographic Unit in North West Europe, 12/1944-5/1945: filming Field Marshal Bernard Montgomery, 12/1944; visit to Bergen-Belsen Concentration Camp, Germany, 4/1945; use of 16mm Colour Film; meeting former camp inmates in Bergen-Belsen Concentration Camp; filming German surrender on Lüneburg Heath, Germany; unit casualties and reaction to death of friends; photographing corpse of Heinrich Himmler at Lüneburg, Germany, 23/5/1945. Aspects of period as officer with No 9 Army Film and Photographic Unit in Singapore, Malaya, 1945-1946: commissioning and transfer to No 9 Army Film and Photographic Unit; opinion of Lord Louis Mountbatten; accommodation. REEL 4 Continues: duties as technical officer; types of cameras used; further memories of Lord Louis Mountbatten; organisation of unit; reaction to dropping of atomic bombs on Japan and end of Second World War, 8/1945; duties as quartermaster; duties with No 36 Army Kinematograph Unit in Singapore; description of covering Japanese war crimes trial and filming executions; attitude to Japanese war criminals; reason for filming executions; disbandment of No 9 Army Film and Photographic Unit and absorption into Malayan Film Unit, 1946; demobilisation, 1947; post-war life and employment as photographer with Picture Post; reflections on period with Army Film and Photographic Unit.

In the July to September 1948 marriage index Leonard E. C. Sutton and Margaret Devlin, Wandsworth district, London, volume 5d, page 2212