==External links==* Juno Beach Centre, short biography on Roberts* Major General John Hamilton Roberts Canadian Army Journal Vol 12.2 Summer 2009* Royal Canadian Artillery Museum Great Gunners John Hamilton Roberts* Generals.dk==References==*4237 Dr. Adrian Preston & Peter Dennis (Edited) "Swords and Covenants" Rowman And Littlefield, London.
* Juno Beach Centre, short biography on Roberts* Major General John Hamilton Roberts Canadian Army Journal Vol 12.2 Summer 2009* Royal Canadian Artillery Museum Great Gunners John Hamilton Roberts* Generals.dk