Universität Basel. Historisches Seminar(2)
Archives Départementales du Rhône (Lyon)(1)
Charles Warren Center for Studies in American History(1)
Durand-Ruel Galleries (New York, NY)(1)
Fine Arts Associates (New York, NY)(1)
Galerie Karl Buchholz (Berlin)(1)
Inter-University Council for Higher Education Overseas(1)
Museum Wasseramt - Turm in Halten(1)
Queen's University (Kingston, Ontario)(1)