[Nokose]

I found part of the answer in Wikipedia. The unit was the 352 FG. In Frank Olynyk's book "Stars & Bars" two aces of the 352 FG scored near Schijndel at Heusden. 328 FS 1st Lt. John Francis Thornell Jr shot down two Bf 109 at 12:30 and 328 FS Capt Donald Septimus Bryan shot down one Bf 109 at 12:30. There is still a possibility of another pilot who didn't make ace having shot down Bitsch.