The information I found is that the airborne unit was the 503rd Parachute Infantry Regiment. I hope this helps.
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http://www.thedropzone.org/pacific/noemfoor.html
Jump on Noemfoor
On July 3, 1944, the first battalion of the 503rd Parachute Infantry Regiment jumped on Noemfoor Island, a small island off the western coast New Guinea. The Parachute Regiment was part of a reserve force that was sent to reinforce the 158th RCT that landed on the Island a few days earlier and was encountering stiff resistance from Noemfoor’s Japanese garrison.
During mid-May, Noemfoor Island indirectly became part of General MacArthur’s westward advance on New Guinea. Prior to the landing on Noemfoor, the 41st Infantry Division was fighting tooth and nail on the tiny island of Biak, which contained three strategically located airfields. Fighting on Biak was savage. Waiting for the 41st to travel inland, the outnumbered Japanese garrison counter-attacked in force with tanks and forced the 41st back to the shoreline. Fighting was prolonged on Baik for several weeks since the Japanese were able to secretly ferry reinforcements by barge at night from nearby Noemfoor Island. Once the mystery behind the origin of the reinforcements was discovered, MacAuthor ordered that Noemfoor be taken.
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http://corregidor.org/503_abbott/503.htm
A Condensed History of the 503rd Parachute Regimental Combat Team
Two rifle Battalions of the 503d Regiment jumped on the Island of Noemfoor off the coast of Dutch, New Guinea early in July 1944, followed by an amphibious landing by the other rifle Battalion a few days later. The Regiment was employed in the elimination of the Japanese garrison on that Island. Airfields constructed on Noemfoor after its capture played a significant role in supporting the advance of Allied troops from New Guinea to the Philippines. Sergeant Ray E. Eubanks was awarded the Congressional Medal of Honor, posthumously, for his actions on Noemfoor.
[ 11. January 2003, 07:30 PM: Message edited by: Crapgame ]