Source of acquisition is the Source of acquisition is the Ministerio Negocios Estrangeiros Holocausto. Documents originate from various Portuguese legations, embassies, and consulates all over the world, as well as the Portuguese Ministry of Foreign Affairs in Lisbon, press clippings, and private collections belonging to diplomats. The United States Holocaust Memorial Museum Archives received this collection via the United States Holocaust Museum International Archives Project in 2000, and accretion in Dec. 2013.