[CJE]

No problemo, Jim.

The Escadrille was not supposed to be an autonomous outfit, like the Flight in the RAF. There are a few instances where Escadrilles were temporarily detached to another a/f, but the main aunomous unit was the Groupe.
Thus, it did not matter that GC III/1 had the same 1st and 2nd Escadrilles as GC I/1. BTW, they were refered to as "1st - or 2nd - escadrille of GC III/1".
Each Groupe had only two Escadrilles.

The usual strength for a GC was between 26 and 36 a/c. 26, ie 12 for each Escadrille and two for the HQ. The C/O and his deputy were supposed to take part in operational missions, but as a matter of fact few did in May-June 40.
Count about the half for GBs and GRs, and only one HQ a/c.

Wishes,

Chris