The Ion Dumitru Collection was donated by Ion Dumitru to the National Institute for the Memory of the Romanian Exile (INMER). The donation of this private archive was possible as a result of the efforts made by the institution to identify exile collections for the purpose of bringing them to Romania and of opening them for research. After making a full inventory, the institute opened the collection for researchers and the general public in 2006. The Ion Dumitru collection is an extremely important source of documentation for the history of Romania under the communist regime, especially for the ways of self-organisation and action of the postwar Romanian exile community.