The following sources provide information relating to Orie Loucks's time as a botany professor and witness in the DDT trial:

UNIVERSITY OF WISCONSIN ARCHIVES Title: Hugh H. Iltis papers, 1858-1996 Accession number: 2014/160 note: Papers of Hugh Iltis, a colleague and fellow botany professor.

WISCONSIN HISTORICAL SOCIETY ARCHIVES Title: Interviews Creator: Dunlap, Thomas R., 1943- Call number: Tape 915A note: Taped audio interviews with various people involved in the DDT trial, including Orie Loucks. Title: DDT hearings, 1968-1969 Creator: Wisconsin Department of Natural Resources Call number: Series 2214 note: Testimony and exhibits of the DDT trial Finding aid: http://digital.library.wisc.edu/1711.dl/wiarchives.uw-whs-ser02214