Gustav Jules Eugene Blondeau (1871-1965) was an early pilot and went on to form Hewlett & Blondeau Limited, an aircraft manufacturer in the United Kingdom. He was born on 8 March 1871 in Tergnier, France, and graduated from Farman Aircraft at Mourmelon in France on 10 July 1910, then joining the Gnome engine works. He later opened his own flying school at Brooklands, Surrey, where he met Hilda Hewlett.