Although I have more questions than answers about a few of these pics (not unusual) here's a few C-47 photos per request. Sources: SDASM archives, USAF Museum archives, my stuff.
But before that here are a couple of fascinating D-Day airborne videos for your viewing pleasure.
http://www.youtube.com/watch?v=5utrJmfEFYEhttp://www.youtube.com/watch?v=NkKbot6kYG0Now for some C-47 photos

Navy R4D making FIDO - assisted landing during test

Douglas C-47 Skytrain Aircraft Flying Formation Philippines

Douglas C-47 Skytrain's at Nadzab in New Guinea.

54 C-47 Skytrains of the 317th Troop Carrier Command waiting to start engines to drop the 11th Airborne Infantry Division over Camalaniugan, Northern Luzon, Philippines, June 22, 1945

Spraying DDT insecticide to control mosquitoes and the malaria they carry over the bombed areas in Manila, Philippines, post WWII, April 1945

C-47 Syktrains of the 317th Troop Carrier Command parked in take-off positions at Lipa Airstrip, Philippines, June 22, 1945.

95th Troop Carrier Sq 440th TCG; 6 May 1945.

D-Day C-47

Eugene O'Brien 125th Liason Squadron

C-47 (99th Troop Carrier Squadron) 441-Group (441st Troop Carrier Group) at the airfield near Cherbourg in France 1944.

77th-TCS-435th-TCG-C-47

77th Troop Carrier Squadron, 435th Troop Carrier Group based at Raf Welford

C-47s at Henderson Field viewed from the tower, Guadalcanal, 1945.

Tontouta Air Base July 7 1943. Loaded with C-47's

Operations department cleans up LAES C-47

43-49404, built as a C-47B-15-DK.

Douglas C-47 on NC-ANG ramp