Byron Alexander Griffith earned his Ph.D. from the University of Toronto (Canada) in 1937. His dissertation was titled *On the Steady Two-Dimensional Flow of a Viscous Liquid past a Fixed Circular Cylinder*. He went on to join the staff of the University of Toronto as Associate Professor of Mathematics. In 1942, he co-authored *Principles of Mechanics* with his former Advisor, John Lighton Syngh. Source: [Mathematics Genealogy Project](https://www.mathgenealogy.org/id.php?id=16018)