USMC ( http://www.usmarinesbirthplace.com/US-Marine-Corps-Casualties.html ):
KIA: 19,733 WIA: 67,207
USAAF ( http://www.taphilo.com/history/8thaf/Air-Force-Casualaties-WWII-Summary.pdf )
KIA (Europe only): 23,805 WIA: 9,299
KIA (Europe, North Africa, Mediteranean): 44,785 WIA: 18,364
Died in captivity: 2,783
Died in aircraft accidents (Pearl Harbor through 1946): 25,844
Damn, I had no idea that many died in non-combat accidents! Pretty risky trade, no two ways about it.