This fonds contains files relating to St. Barbe's family, as well as his personal correspondence, autobiographical material, his forestry and conservation activities (including Men of the Trees and the Sahara Reclamation Program), and his involvement with the Baha'i faith. While the collection as a whole covers the full span of St. Barbe’s life, 1889-1982, the bulk of the material dates from post-World War II, much of the earlier material apparently having been lost to German bombs in England during the war.