Charles H. Sternberg (1850–1943) began as a collector of dinosaurs for Edward Drinker Cope (1840–1897). Later he became known as a professional fossil collector in his own right, and he worked for a number of institutions from 1876 to the early 1900s. His collecting took him through the dinosaur beds across the border from Montana and the Dakotas, and on into Canada. He and his sons made important discoveries in the Badlands of Alberta, forming the core of many dinosaur collections in Toronto, Ottawa, New York, and other worldwide dinosaur institutions.