Helen Brown: Jane Birkin: My father, the secret agent. The Daily Telegraph, 2023-07-16 (ponowna publikacja wywiadu z 2021 roku). [dostęp 2023-07-20]. Cytat: „As a navigator in a clandestine naval unit, Lt-Cdr David Birkin’s job, she tells me, was «taking British spies across the Channel to France and bringing home stranded airmen and escaped POWs». (…) in January 1942, Birkin was summoned to London and recruited to join the 15th MGBF.” (ang.).