Complex sentence: Sir Ross Macpherson Smith (4 December 1892--13 April 1922) was an Australian aviator, who, along with his brother, Sir Keith Macpherson Smith, became the first pilots to fly from England to Australia, in 1919.
Split into simpler sentences: Sir Ross Macpherson Smith (4 December 1892--13 April 1922) was an Australian aviator. He and his brother, Sir Keith Macpherson Smith, were the first pilots to fly from England to Australia, in 1919.