Auswanderermuseum BallinStadt Hamburg
Deutsches Auswandererhaus Bremerhaven
Max Kade Institute for German-American Studies, University of Wisconsin-Madison
Immigration History Research Center, University of Minnesota
American Jewish Archives, Cincinnati
Project: Migrant Knowledges
Project: German Heritage in Letters
Projekt: die Briefkommunikation der Kaiserin Augusta
Project: Political Remittances: Understanding the Political Impacts of Migration'