Before, during, and after World War II, Ulius "Pete" Louis Amoss (1895-1961) engaged in espionage. His work included directorship of the OSS during the war and founder and director of the ISI, the International Services of Information Foundation, Incorporated. Amoss is credited with the coining the phrase "leaderless resistance." The collection includes correspondence, literary manuscripts, espionage material, and print material that reflect his life and work as a spy.

Bryton Barron (1898- ) was a teacher, a writer, a civil servant, a publisher and, most notably, a political conservative who wrote critically of the U.S. State Department and U.S. Foreign policy. The collection includes correspondence, writings, reports and newspaper clippings.

Ben Linder (1959-1987) was an American mechanical engineer who worked in San Jose de Bocay, Nicaragua from 1983 until his death by the Contras on April 28, 1987. The collection includes correspondence, diaries, articles on political and engineering subjects, photographs, and the Linder family’s records, all of which reflect Linder’s humanitarian work, his political activism, and the impact his death had on American foreign policy debates and within the general public sphere.

Otto D. Tolischus was a German immigrant and journalist and is known for his Pulitzer Prize winning coverage of Nazi Germany. Collection includes correspondence, manuscripts, editorials, lectures, scripts, biographical information, memos, and a photograph.