- 39th Service Group Headquarters and Headquarters Squadron: stationed from December 1943 until 31st March 1944 (moved to Harrington, Cumberland)
- 325th Ferrying Squadron: activated at Maghaberry 9th December 1943 as an element of the 27th Air Transport Group and stationed there until 12th May 1944 (moved to Holston, Middlesex). They were assigned 8th March 1944 to United States Strategic Air Forces
- Crumlin:
- Headquarters and Headquarters Squadron, 403d Base Air Depot: they were activated at Crumlin 27th March 1944 and stationed there until 9th November 1944 (moved to Compiegne, France)
