This collection documents the life of pharmacist and entrepreneur Arthur Abelmann. It contains materials about his personal and professional life, including his service in World War I. The bulk of the material concerns Chemiewerk, the pharmaceutical firm he founded in 1920 and cultivated for 13 years. In 1933, Abelmann was forced to resign his leading position and then to sell the company in one of the earliest cases of "Aryanization."

This collection of mainly anti-Semitic material was compiled by a Jewish librarian of German descent who infiltrated the pro-Nazi community developing in New York City in the years leading up to World War II. The bulk of the collection consists of publications and printed matter, with the notable exception of narrative reports that describe first-hand experiences and observations of Nazi-affiliated events. Document types include advertisements, event announcements, books, clippings, correspondence, magazines and newspapers, travel guides, political memorabilia, and other print ephemera.

This collection documents the academic, professional and private life of Jacob Barosin (1906-2001), a painter and artist of Russian-Jewish descent. Barosin was raised in Berlin, but he fled to France in 1933 and in 1943 survived a stint in the Gurs concentration camp. The collection primarily contains correspondence, ephemera, manuscripts, official documents, personal papers, and photographs.

This collection contains material by and about the family of German-Jewish physician Richard Koch, collected by his daughter Naomi Laqueur. In the 1930s Richard and Maria Koch and their five children left Germany for the Soviet Union, Israel, England, and the United States. The bulk of the collection consists of correspondence sent to Laqueur from her parents and her siblings. Spanning the 1930s to the 1970s, the letters paint a rich portrait of the differences in mid 20th-century life in the Soviet Union, Israel, England, and the United States. Additional correspondence includes letters from Laqueur’s friends and extended family, and correspondence between other family members. The collection also documents Richard Koch’s professional activities as a physician, and additionally contains some of his poems and portions of a memoir. It also has materials about friends and relatives, a collection of Alfred Koch’s love poems from the 1910s, and photographs.