The Elmira mission was flown by the 435th, 436th, 437th and 438th Troop Carrier Groups. The 438th's 88th Troop Carrier Squadron flew Serial 31 of the mission. Serial 31 is the serial Corporal Levine and his driver were in, flying in two (2) separate CG-4A "Waco" gliders - One with the jeep, driver and remainder of the Air Support Party, and one with the trailer, Corporal Levine and his 82nd Airborne "bodyguard."
Source/Credit:
National WWII Glider Pilots Association
Also, reference the 438th Troop Carrier Group
Beginning in March of 1944, the 438th Troop Carrier Group flew Douglas C-47 Skytrains out of Greenham Common with the following Troop Carrier squadron fuselage codes:
87th Troop Carrier Squadron (3X)
88th Troop Carrier Squadron (M2)
89th Troop Carrier Squadron (4U)
90th Troop Carrier Squadron (Q7)
94th Troop Carrier Squadron (D8)
The 438th was a group of Ninth Air Force's 53rd Troop Carrier Wing of IX Troop Carrier Command.