John M. Boag (6 April 1874 â 7 February 1954) was a Scottish professional footballer, best remembered for his seven years as a centre forward in the Football League with Derby County. He also played for Cowlairs, Ashfield, East Stirlingshire and finished his career with Brentford. While with Derby County, Boag was a part of the Rams' 1898, 1899 and 1903 losing FA Cup Final sides.
After his retirement from football, Boag invested in a fishmongers, a laundrette and a snooker hall.