No. 11 Group Pool, Royal Air Force Fighter Command, RAF St Athan (Glamorgan): the fighter group pool of No. 11 Group that arrived at St Athan in 1939 (Wikipedia, MOD St Athan). The National Archives (UK) casualty list names it for the loss of Hurricane L2007 on 10 November 1939 (Pilot Officer E E Crompton, RCAF). No squadron is named at St Athan in 1939, so he is recorded in the pool.
No. 11 Group, from the RAF official website: On 14 July 1936, 11 Group became the first RAF Fighter Command group formed, with the responsibility for the air defence of southern England, including London. 11 Group's most famous period was during the Battle of Britain when, due to its position, 11 Group bore the brunt of the German aerial assault.
Unit Accident Records: 11 Group 11 Group Pool RAF ()
