According to 'RAF Squadrons' by W/C Jefford
341 (Alsace) Squadron was not formed until Jan 1943.
GC III/2(Alsace) had been operating in North Africa from September 1941 where the pilots were attached to various RAF squadrons such as 274 & 73 Sqn.
The ORB for the dates Jan 43 - Nov 45 are held at the National Archives in AIR 27/1738
http://www.nationalarchives.gov.uk/c...accessmethod=5
There also appears to be some information on the Free French Alsace Fighter Squadron dated 1942 -1943 in AIR 23/6004
http://www.nationalarchives.gov.uk/c...0&Summary=True
342 (Lorraine) Squadron was formed at West Raynham in April 1943.
Prior to this date the squadron had operated in North Africa as GB II/20
The ORB for the dates Sep 41 - Nov 45 are held at the National Archives in AIR 27/1739
http://www.nationalarchives.gov.uk/c...accessmethod=5
Regards
Andy