For II/StG 2: Located at Siegburg with Ju-87B's. On 14th May one Ju-87B failed to return from operations south of Sedan/18km south-east of Charleville. Gruppenkommodore - Hauptmann Walter Enneccerus.
Here is a link to a run-down of StG 2...
http://www.ww2.dk/air/attack/stg2.htm
Source: Dive-Bomber & Ground-Attack Units Of The Luftwaffe 1933-1945 Vol 1 by Henry de Zeng & Doug Stankey.
For III/KG 1: Located at Ettinghausen with He-IIIH. 11th-16th May bombed rail, transports, tanks, troops along line of advance of 4 Armee through southern Belgium. Gruppenkommodore - Major Hans Steinweg after Major Otto Schnelle was shot down on 10th May.
Here is a link to a run down of KG 1...
http://www.ww2.dk/air/kampf/kg1.htm
Source: Bomber Units Of The Luftwaffe 1933-1945 Vol 1 by Henry de Zeng & Doug Stankey.