He was educated at the High School and the University of Glasgow, where he won many prizes, including two gold and two silver medals.
He won Dr. John Caird's Special Prize for Sermon Composition at the University Divinity School.
Theologically Struthers was a Reformed Presbyterian indeed, a staunch Calvinist and a lover of the Westminster Shorter Catechism.
It consisted of twelve pages, mostly written by Struthers and illustrated by a capable Greenock artist, Miss Annie Macdonald.
The professional relationship of the bachelor minister and the unmarried artist grew into something deeper and they were married on 20 May 1907.
His main published work is his beloved magazine, although his wife edited a volume of his sermons under the title Windows in Heaven (London, James Clark, 1926).