[2] Their only son Donald James Roy Mackintosh was born in 1902, but died of measles in Menton, France, in December 1907.

[1] As a young boy, Mackintosh learnt to shoot with an old muzzleloader, using it to hunt crows and rabbits with lead and black powder.

He joined the Melbourne Gun Club in 1889,[1] and within six months had attained the maximum handicap of 30 yards (27 m), which he held for the rest of his career.

[1] Mackintosh participated in live bird shoots at least three days per week, and much of the rest of his time was spent hunting game, especially quail.

[2] Mackintosh left Australia in 1896 to travel on the more lucrative European shooting circuit, participating in tournaments in England, Belgium, France, Monaco, Spain and Italy.

[7] Mackintosh entered two live-pigeon shooting events at the 1900 Exposition Universelle in Paris, which was held simultaneously with the Olympics.

[9] This error was not brought to the attention of the IOC until 1987, when Australian historians Reet and Max Howell conducted further research.

[1] In 1922, Mackintosh participated in an exhibition of clay pigeon shooting in order to raise money for a library in Rockbank, his birthplace.

[1] In 1939, Mackintosh donated a trophy worth 100 guineas for an international trap tournament, to be contested between teams from Australia and the Home Nations.