His father Pastor Beauvil Jeune was a pioneer of the Mission Evangelique Baptiste du Sud d'Haiti (MEBSH).
During a Vacation Bible School at age seven, Chavannes made his own personal commitment to Christ, followed by baptism at fourteen.
[3] His postdoctoral studies were dedicated to theology, sociology and development administration at Columbia Bible School in North Carolina.
[3] Jeune served as the national leader for the MEBSH (Mission Evangélique Baptiste du Sud d'Haïti).
[7] Jeune is married to Marie Lucie Carisma (a Business Administration specialist) with whom he was 4 children (3 sons and 1 daughter).