Commission initiated by the US delegation at the peace negotiations of Versailles in July 1919, which was established to investigate anti-Jewish violence in Poland. The commission was set up in response to reports of pogroms in Pińsk and Vilnius in April 1919. This delegation, consisting of more than twenty members who conducted their research in numerous places in Poland during a two-month period, became known under the name of its head, Henry Morgenthau Sr. (1856–1946). Morgenthau presented a comprehensive report in early October 1919.

Immediately after the founding of the R…