Theodorus (Theo) Lambertus Verhoeven, SVD, (17 September 1907, Uden, The Netherlands – 3 June 1990, Antwerp, Belgium)[1] [2][3] was a Dutch missionary and archaeologist who has become famous by his discovery of stone tools on the Indonesian island of Flores, in association with the c. 800,000-year-old fossils of stegodontids, or dwarf elephants, from which he concluded that islands in Wallacea had been reached by Homo erectus before modern humans appeared there.