[1] Verrept obtained his pilot's license 18 April 1911 at the Blériot flying school in Pau, France.
[2] In January 1912 he accompanied aviators Jules Tyck [nl] and Jonckheere during their first part of their trip to the United States.
[6] A day after an argument with his fiance Alice Mathis he committed suicide in Châteaufort near Versailles on 17 April 1912.
At 5am (local time) in the morning he left his house with a photograph of his girlfriend on his heart and told her that he was going to commit suicide.
[8] When his fiance saw his body in the hospital, she asked for forgiveness,[8] and said "Poor John, I never thought you would do this and it was my fault".