The New Daily Mail Prizes, Flight, hosted at flightglobal.com, 5 April 1913, hlm. 393, diarsipkan dari versi asli tanggal 3 Agustus 2016, diakses tanggal 2022-02-28
Claude Grahame-White, Flight, hosted at flightglobal.com, 1958, hlm. 64, diakses tanggal 2022-02-28
The New Daily Mail Prizes, Flight, hosted at flightglobal.com, 5 April 1913, hlm. 393, diarsipkan dari versi asli tanggal 3 Agustus 2016, diakses tanggal 2022-02-28