At the same time, Squadron Leader Joseph R. Kayll is busy reorganizing No.615 Squadron at RAF Kenley Station following the various losses sustained during the May 1940 operations. Lionel M. Gaunce temporarily takes the command of A Flight with the functions of Flight Lieutnant. Pilot Officer Horace E. Horne is transferred to No.242 (RAF) Squadron on 2 June . In parallel, two new pilots arrive, Pilot Officer David Evans  and Cecil R. Montgomery .
These first days of June are, then, essentially devoted to a series of training to allow the Squadron to be able to find an operational activity over France as quickly as possible. There are, also, some patrols . On 2 June, Flight Lieutnant Lionel M. Gaunce (P2871), Pilot Officer Petrus H. Hugo (P2963) and Cecil R. Young (P2966) took off on alert between 18:20 and 19:55 pm. The same on 3 June for Flying Officer Peter Collard (P2768) and Pilot Officer Michael R. Mudie (P2337) between 11:55 and 13:00. On 5 June 1940, a patrol in over Mayfield aerodrome took place, between 21:00 and 21:45 pm, with 9 aircraft: Lieutnant Flight James G. Sanders (P3487), Flying Officer Anthony Eyre (P2793) ), Pilot Officer Keith T. Lofts (P2578), Squadron Leader Joseph R. Kayll (P2871), Flying Officer Herbert S. Giddings (P2801), Pilot Officer John R. Lloyd (L2003), Flight Lieutnant Lionel M. Gaunce (P2966) ) Pilot Officer Petrus H. Hugo (P2963) and Pilot Officer Michael R. Mudie (2768). Finally, Flying Officer Herbert S. Giddings (P2801) and Pilot Officer John R. Lloyd (P3487) took off on 6 June between 12:15 and 12:50 for a short patrol over Kenley.
 The rest of his career remains unknown in the research stage. Indeed, he does not appear to have participated in the Battle of Britain following his transfer to No.242 (RAF) Squadron since his name does not appear in the « Few » list. He was promoted to the rank of Flying Officer (September 1940), then Flight Lieutnant (September 1941), before being transferred to the RCAF on 3 January 1945.
 David Evans, born 21 November 1919 in Liverpool, joined the Territorial Army in 1938 in the 38th (AA) Battalion of the King’s Regiment. He obtained his transfer to the RAF with a SSU in June 1939. After his training with 9 E & RFTS Ansty, he joined No.615 Squadron during the month of May.
 Cecil Robert Montgomery, born in 1914 in Lisnaskea (Northern Ireland). He joined the RAF with a SSU in June 1939. He did his training at 22 E & RFTS (Cambridge), then the No.2 Flying Traning School Brize Norton (21 August 1939 – 17 February 1940). After his conversion to Hawker Hurricane, he joined No.615 Squadron in May 1940.