Frederick John Knowles

British WWI flying ace

British flying ace

British aviator and writer

British flying ace

British flying ace

British flying ace

First recorded airman killed by Manfred von Richthofen

British test pilot

Scotish aviator

British aviator

British aviator and military personnel

British archaeologist, military officer, and diplomat

Russian and Soviet aerospace engineer

Russian aviator

Served in all three of the British Armed Forces during the First World War

Recipient of the Victoria Cross

British flying ace

British flying ace

British World War I Victoria Cross recipient

British flying ace