CORRESPONDENCE,, [1881?] and 1890-1914.

Summary: Professional Correspondence: divided between letters sent and received, this subseries, 1890-1914, includes drafts of business letters Nelson wrote concerning the biological department of the New Jersey Agricultural Experiment Station, correspondence with fellow scientists, responses to requests about biological matters and letters to newspapers regarding health matters and sex education. In addition to four or five letters, 1906-1907 and undated, addressed to the Governor of New Jersey (Edward C. Stokes), there is a 1908 letter which Nelson wrote to President Theodore Roosevelt to accompany his translation of a letter from his father Christian Nelson (the original of which is filed in personal correspondence). The professional correspondence also contains a folder of letters Nelson received, 1890-1907, pertaining to biological matters and requests for information.

Personal Correspondence: divided between letters sent and received, this subseries, [1881?] and 1907-1910, consists chiefly of letters in Danish, 1908-1909, received from Nelson's father Christian Nelson in Waupaka, Wisconsin, but also includes a 1907 letter from a friend in Tacoma, Washington, and letters, 1910, from his brother Thorwald in Wisconsin. In addition, there is one letter written by Nelson, as a recent college graduate, to an unidentified woman.

Professional Correspondence