Adolf Ditlev Jørgensen was a Danish historian and National Archivist. Wikipedia
Born: June 11, 1840, Gråsten, Denmark
Died: October 5, 1897 (age 57 years)
Books: The Dano-German Question and Historiske Afhandlinger
Grandchild: Harald Jørgensen
Children: Troels Georg Jørgensen and Erik Erstad-Jørgensen