This link shows an Arthur C. Whitcombe and a David W. Whitcombe on the same MACR 12366.
http://www.fold3.com/search.php?f_an...&submit=Search
You can join Fold3.com for a free trial period, look up and download MACR 12366. (Fold3 has the aircraft serial # as 44-6545, typo I guess)
301st Bomb Group, 32nd Bomb Sq. B-17 44-6546 MACR 12366 Lost Feb. 13, 1945
http://www.301bg.com/MacrDetails.cfm?MID=105
http://www.301bg.com/301BG_NoseArt.cfm
http://32ndbombsquadron.com/32ndlost.html
http://32ndbombsquadron.com/32ndair.html
http://32ndbombsquadron.com/index.html