On the 8th of May, 2017 Woollahra Council unveiled a Plaque at Double Bay to commemorate the first flight of a Seaplane from Sydney, piloted by Frenchman Maurice Guillaux.

Ernest François Guillaux (24 January 1883 – 21 May 1917), better known by his adopted name Maurice Guillaux, was a French aviator who spent seven months in Australia in 1914. On 16–18 July 1914, he flew Australia's first air mail and air freight flight, from Melbourne to Sydney. During his time in Australia he also gave many aerial displays, was the first person to fly a seaplane in Australia, and was an early user of Ham Common, now RAAF Base Richmond.