https://discovery.nationalarchives.gov.uk/details/r/C17155171 WO 416/245/250 Name: William Mannion. Date of Birth: [unspecified]. Age: 26. Place of Birth: Histon Lyre, Lancashire. Service: British Army. Rank: Guardsman. Regiment/Unit/Squadron: Grenadier Guards. Service Number: 2615074. Date of Capture: [unspecified]. Theatre of Capture: [unspecified]. Camp Name/Number: [unspecified]. PoW number: [unspecified]. Date of Death: 27/05/1940. Number of Photographs: 0. Number of Fingerprints: 0. Number of X-rays: 0. Number of Cards: 2. Date: [1939-1945]
https://www.cwgc.org/find-records/find-war-dead/casualty-details/2775914/william-mannion/ GUARDSMAN WILLIAM MANNION Service Number: 2615074 Regiment & Unit: 3rd Bn. Grenadier Guards Date of Death: 27 May 1940 Age 26 years old Buried or commemorated at COMINES (KOMEN) COMMUNAL CEMETERY Grave Reference: British Plot. Grave 74. Location: Belgium Additional Info: Son of John and Lily Mannion, of Glossop, Derbyshire. Personal Inscription: R.I.P.