He worked in Japan for a period of time, and became an authority on medieval Japanese armor and samurai culture.
[1] Following the death of his father when Bryant was 6, he and his mother moved to Miami Shores, Florida, where he spent his youth and attended Pinecrest Preparatory School.
[1] He was considered a historian of Japan specializing in Kamakura, Muromachi, and Momoyama period warrior culture.
[5] He provided a foreword for The Watanabe Art Museum Samurai Armour Collection Volume 1: Kabuto & Mengu.
[6][self-published source] Bryant wrote four books for Osprey Publishing on samurai history, and co-authored, with Mark T. Arsenault, the core rulebook for the role-playing game Sengoku: Chanbara Roleplaying in Feudal Japan.