Scope and Contents From the Collection: The Correspondence Series is chiefly letters from Oscar Christensen to Leonard Sackett of the Institute. Of interest is one letter containing biographical information on the G.S. Barnes family (8-15-55). There are also copies of two 1889 letters to Otto Christensen. The Manuscript Series include a typed carbon of the Man Behind the Plow (Men Behind the Plow) by Oscar Christensen, Section I. Pages 1-96, and Section II, pages 1-230. This is a history of pioneer life in Minnesota from the...