Using Norman Frank's
Sharks Among Minnows I see 2nd Lt. E.R.C. Scholefield (pilot) and Capt. F.J.C. Wilson (observer) of 8 Sqdn. were brought down on Sept. 1, 1915 by a Leutnant Prestle of FA1.Although there is some confusion as to whether Prestle was flying a Fokker Eindecker or a two-seater Albatros. Both Scholefield and Wilson survived the crash but were captured. The destroyed aircraft was BE2c 1704. The incident is mentioned on pgs. 16-17 of the book which contains more details.
Possibly these two were the aviators in question. Although it was a full week prior to the date of the note being delivered via airmail. Anyone else have some info ?