Background
He was born in Ullensaker, a son of Halvor Gudmundsen Sundby and Gina Jakobsdatter.
He was born in Ullensaker, a son of Halvor Gudmundsen Sundby and Gina Jakobsdatter.
He was appointed professor of hydroelectricity at the Norwegian Institute of Technology from 1911 to 1952. A portrait of Sundby, painted by Jean Heiberg, is located at the Norwegian University of Science and Technology.