Air Vice Marshal Bill Bostock, quoted by Squadron Leader John Waddy On 20 April 1945, the eight pilots presented Cobby with identically worded letters under the heading, "APPLICATION FOR RESIGNATION OF COMMISSION."
Wakil Marsekal Udara Bill Bostock, dikutip oleh Ketua Skadron John Waddy Pada tanggal 20 April 1945, kedelapan pilot tadi mengirimkan surat kepada Cobby dengan judul "APPLICATION FOR RESIGNATION OF COMMISSION".