Gerard De Geer
Swedish geologist
Baron Gerard Jacob De Geer ForMemRS was a Swedish geologist who made significant contributions to Quaternary geology, particularly geomorphology and geochronology. De Geer is best known for his work on varves. Wikipedia
Born: October 2, 1858, Stockholm, Sweden
Died: July 24, 1943 (age 84 years), Stockholm, Sweden
Children: Sten De Geer
Siblings: Gerhard Louis De Geer
Notable students: Hans Ahlmann, Ernst Antevs, Carl Caldenius, and more
Grandchild: Jan De Geer