William Atherton DuPuy (1876–1941) was an American journalist, author, and syndicate manager who specialized in writing accessible works on science, nature, and the federal government. Born in Texas, he began his career in journalism, eventually establishing the DuPuy Syndicate in Washington, D.C., which supplied features to numerous newspapers across the country.
DuPuy's literary output was characterized by an educational and civic-minded focus. He wrote several books designed to introduce readers, particularly youth, to the functions of government and the natural world. Notable among these were Uncle Sam, Wonder Worker and Uncle Sam's Modern Miracles, which highlighted the scientific and technological achievements of federal departments. He also authored popular nature guides, such as Our Insect Friends and Foes and Our Bird Friends and Foes, which aimed to foster conservation and scientific curiosity.
