• obituary;
  • Henriksen;
  • geodesy pioneer

Soren Werner Henriksen, a pioneer in applying space technology to geodesy and mapping, died on 5 September 2011 at the age of 95. His expertise spanned the fields of applied mathematics, astronomy, surveying, and photogrammetry as well as geodesy and cartography. Soren was born in New York City on 5 August 1916 but grew up in Chicago. He joined the Illinois National Guard in 1938 and 3 years later transferred to the U.S. Army, where he served until August 1945. During that summer he had been severely wounded in the Philippines. The following year he entered the Illinois Institute of Technology, graduating in 1949 with a bachelor's degree in mathematics. In 1950 he obtained a master's degree from the University of Illinois at Urbana-Champaign, also in math.