An Associate Professor of Radiology at the University of Rochester School of Medicine, Stafford L. Warren, was commissioned as a colonel in the United States Army Medical Corps, and appointed as chief of the MED's Medical Section and Groves' medical advisor.
Un profesor asociado de radioloxía na Universidade de Rochester, Stafford L. Warren, foi comisionado coronel no Corpo Médico do exército e designado xefe da sección médica do proxecto, ademais de conselleiro médico de Groves.