This is a rare find that you have. I don't know if this is the same person, but here is what I found with some data bases that I have used in the past:
MISSION 92 -- April 13, 1944. Schweinfurt, Germany.
The following combat crew is Missing in Action:
535th Squadron
2nd Lt. Mullane, James F.
1st Lt. Sherwood, Thomas P.
2nd Lt. O'Phelan, Patrick D.
T/Sgt. Kettlety, Robert E.
T/Sgt. Stahlke, Edward A.
S/Sgt. Tarczynski, Thaddeus J.
S/Sgt. Sparrow, Lewis F.
S/Sgt. Troxler, Frank G.
533rd Squadron
2nd Lt. Kirby, John J.
http://www.381stbg.org/lc3.php
381st Bombardment Group Mission #92 – Schweinfurt, Germany (4/13/44)
532nd BS diary entry: The ball-bearing factory at Schweinfurt, again was the target for this group, our pilots being: Lts Bowen, Klinkseik, Thomas, Thompson, Ezzell, Bradner, Blog and McCrory. The factory had been put back in production after early bomb attacks severely damaged it. Bombing results were reported as good.
533rd BS diary entry: Schweinfurt, still the center of the ball-bearing production of the German war machine, today underwent its fourth attack of the war from Fortresses, which pounded factories in several parts of the city with tons of high explosives and incendiary bombs.
Leader of the 381st's two formations of 32 bombers was Major Charles L. Halsey, 535th commander, who flew in "Georgia Rebel II" with 1st Lt Charles A. Enos as his pilot. Upon reaching Schweinfurt, 12 ships headed by Capt Carl Franek, 553rd operations officer, split off from the main group and headed for a separate factory target, eight ships from this squadron taking part.
Observers in Capt Franek's group said bombs were in a tight pattern, all landing in the target area. Several gunners reported fires started by their bombs on a large factory building. Both the groups were attacked once by two enemy fighters, which in both instances made one pass through the formations without returning.
The rest of the pilots were: Lts Tarr (with Capt Franek), Schindler Wezowicz, Helm, Bailey, Lancaster, Townsend and Garrett.
534th BS diary entry: Lts. Williams, Myers, Kuhl, Ackerman, Rayburn and Henry took off early today to bomb the ball bearing works at Schweinfurt, Germany. Bombs were away over the center of the target and many crews ported hits. Some crews were unable to observe results because of smoke from previous bombs on target. Enemy a/c did not oppose. Intense and accurate flak was encountered. There was some battle damage to ships. There were no casualties and no claims. 1st Lt. George D. O’Sullivan and S/Sgt. Edward J. Gartland finished up today. Both men hold the Air Medal with three clusters and the DFC.
535th BS diary entry: Major Halsey and Lt Enos led the 1st Combat wing to Schweinfurt, to bomb the same old ball-bearing plant. Other pilots were: Lts Hallecy, Putek, Bartlett, Liddle, Ringgenberg and Mullane (missing in action). Lt Urban aborted with one wing tank leaking gas heavily.
Flak was moderate in the target area, and the ships reported being heavily hit. Bombing was believed to be good, with visibility VACU in the target area. About 60-100 enemy aircraft were seen attacking other Fort formations in the target area, but our group met only two quick passes from strays.
MIA crew: 2nd Lt James F. Mullane, 1st Lt T. Paxton Sherwood, 2nd Lts Patrick D. O'Phelan,
John J. Kirby; T/Sgt Edward A. Stahlke, Robert E. Kettlety, S/Sgts Thaddeus Tarczynski, Lewis F. Sparrow and Frank G. Troxler.
Lt Stickel, squadron navigator, finished up today.
8th AF diary entry: Mission 301: 626 bombers and 871 fighters are dispatched to hit targets in Germany; the bombers claim 22-13-34 Luftwaffe aircraft and the fighters claim 42-8-10 in the air and 35-0-21 on the ground; 38 bombers and 9 fighters are lost; the bombers also drop 5.2 million leaflets on Germany; this mission is flown in conjunction with a raid on Hungary by 500+ Fifteenth Air Force bombers and a Ninth Air Force B-26 raid in S The Netherlands; details are:
1. 154 of 172 B-17s hit the industrial area at Schweinfurt and 1 hits a target of opportunity; 14 B-17s are lost, 1 damaged beyond repair and 127 damaged; casualties are 11 WIA and 139 MIA.
2. 207 of 243 B-17s bomb aviation industry targets at Augsburg and 20 hit the city of Augsburg; 18 B-17s are lost, 2 damaged beyond repair and 178 damaged; casualties are 3 KIA, 16 WIA and 170 MIA.
3. 211 B-24s are dispatched to hit Lechfeld Airfield; 93 hit the primary, 60 bomb aviation industry targets at Oberpfaffenhofen; 29 hit Lauffern and 2 hit targets of opportunity; 6 B-24s are lost and 45 damaged; casualties are 1 KIA, 3 WIA and 60 MIA.Escort is provided by 134 P-38s, 504 Eighth and Ninth Air Force P-47s and 233 Eighth and Ninth Air Force P-51s; 3 P-38s are lost and 1 damaged beyond repair; 2 P-47s are lost; and 4 P-51s are lost and 1 damaged beyond repair; a total of 11 fighters are damaged; casualties are 2 WIA and 8 MIA. Mission 302: 4 of 5 B-17s dispatched drop 800,000 leaflets on Amsterdam, The Hague and Eindhoven, The Netherlands at 2235-2252 hours without loss.
SUPREME HEADQUARTERS ALLIED EXPEDITIONARY FORCE (SHAEF): General of the Army Dwight D Eisenhower formally assumes direction of air operations out of the UK at 0000 hours (though he began informal exercise of this authority in late Mar 44). This assumption of authority gives Eisenhower direction over the Allied Expeditionary Air Force (AEAF), Royal Air Force (RAF) Bomber Command, and US Strategic Air Forces in Europe (USSTAF) (the Fifteenth Air Force retains some degree of independence) along with the US 1st Army Group, British 21 Army Group, and Allied Naval Forces.
http://forum.armyairforces.com/381st-Bombardment-Group-Missions-and-News-Coverage-m232309-p12.aspx
If this is him, or whoever he turns out to be, it might really be remarkable to find his children if he had any or grandchildren or other relatives to give these materials to.