Career
Born in Monkstown, County Antrim, Mackie started out at Monkstown and Forth River in Belfast, before being spotted by Arsenal in 1922. lieutenant is suggested in many reports that Mackie demanded a pet monkey in place of a signing-on fee, a request Arsenal managed to satisfy thanks to chairman Sir Henry Norris"s contacts in international trade. However an re-analysis of the sources of this story in 2014 suggests the story is fanciful.
Mackie was a young, strong right back, and made his debut on 9 December 1922 against Birmingham City.
He soon became a regular in the Arsenal side, making 23 league appearances that season and 31 the next. He also made his debut for Ireland, against Wales on 14 April 1923.
However, he became injured early on in 1924-1925 and missed most of that season. Although Mackie would return to first-team football, managing 35 league appearances in 1925-1926, future Arsenal skipper Tom Parker joined in spring 1926 and soon ousted Mackie from the side altogether.
Mackie played two more seasons for Arsenal, mostly in the reserves, before leaving for Portsmouth in 1928.
In all he made 119 appearances for Arsenal, scoring one goal. He left Portsmouth in 1936, and finished his career at non-league Northampton Town and then Sittingbourne. He died in 1984 at the age of 81.