Alexander Falconer Giles was born on the 20th of October 1881 in St Giles, Edinburgh, to Alexander Giles and Cecilia Dudgeon. He graduated with an MA from the University of Edinburgh in 1904, and studied at Balliol College sometime before 1914. Giles taught Classical History at the University of Edinburgh from 1915 to the late 1940s, and became Deputy Secretary of the University in 1922.
He married Jean Clarke McGeorge in 1914 in Dumfries. He died in 1963 in Newington, Edinburgh.
Sources: Ewing, Annals of the Free Church of Scotland on [http://ecclegen.com/ministers-g/], accessed on 09/03/2018; Matriculation records of the University of Edinburgh, and The Balliol College Register 1832-1914, ed. by Edward Hilliard (Oxford: Horace Hart at the University Press, 1914).