Thanks, Alex, it seems that the details of the 94th BG that day are hard to find, but you confirm the name of the second KIA as Clemens.
Regarding 306th BG, I checked the book “First Over Germany: A History of the 306th Bombardment Group”, by Russell A. Strong, to see if the WIA is named. No luck, he only says that the "mission to Kiel on the 19th was uneventful and without losses", and then includes a report of Col Putman, 306th BG CO, about the mistakes done during this raid.
For 303rd BG, the detailled report is available online (
http://www.303rdbg.com/missionreports/038.pdf) and says: "Sgt. Woodrow B. Thomas, a member of the 427th BS Ground Personnel, was Killed in Service this date. It is not known how or where he was killed." He is buried in Cambridge American War Cemetery, and so registered on the ABMC database, without a Purple Heart, so this may confirm he was not KIA, but killed in service, not by enemy action.