My knowledge only comes from the source documents I have access to. When I need further info I have to search for it, and in this case I used the wiki page for Romorantin - Pruniers Air Detachment which had the details of use in WWII.
I wasn't aware that document - I have it now so will keep it in mind in future. It is good to be challenged if it leads to more accuracy in the future.
I had the same image in two locations with attributions for both 4th and 6th June. As the sources are both contemporary, I thought it best to include both dates.
I only looked for Romorantin in my WWI sources after posting the first image and came across the wonderful images of the Romorantin Gievres complex and thought I just had to share them. I think I've got all the source images of the composite in large scale as well.