John Watson MacColl was born in 1930 in Aberdeenshire, Scotland. He started at the University of Glasgow in 1921 studying mathematics, natural philosophy, engineering; drawing, electricity, and electrical engineering. He graduated BSc in 1924 and received a PhD from the University in 1927. Following his studies, John worked as a Ballistic Research Officer for the Ordinance Board from 1929. He retired in 1963 as Senior Superintendent of Basic Research. He died in 1977 in Tunbridge Wells, Kent, England.
From the guide to the Papers of John Watson MacColl, 1903, science graduate, University of Glasgow, Scotland, 1921-1927, (Glasgow University Archive Services)