Hello Herchuel; I am stationed at Chievres currently. I have spoken with a Daniel Leleu, Same Museum perhaps? Peter Celis has a very good book covering the airfields of Belgium during WWII.
Runways to Victory has a good amount of detail concerning axis and allied units stationed at Chievres. Also at a website that directed me to this website
http://www.feldgrau.com/ a member by the name of Lorenz pointed me to the following units being at Chievres at one time or another:
I./KG 6 (14.02.44 - 18.03.44)
II./KG 30 (21.07.44 - 29.07.44)
II./KG 76 (12.07.44)
II./LG 1 (14.06.44 - 16.06.44)
I am willing to help you where I can maybe with some pictures as well. Feel free to contact me if needed. kingsaltine@hotmail.com