http://www.86fighterbombergroup.com/War%20diary.htm
The war diaries of the 86FBG whose squadrons operated the A-36 as well as later P-47s is available on-line (see link above).
The data is in raw form - i.e. as filed by respective field officers - but gives descriptions of day-to-day operations. It also provides more mundane information as airfield movement, medical cases (tooth-extractions, VD cases, etc), etc. The few pages that I've looked over don't seem to be quite specific as Pilot X claimed 2 Bf 109's on day Y, etc...but more along the lines of fighter-bomber mission/6 aircraft/description of e/a encountered, etc.
Happy factophiling,
...geoff