President of The Photo League 1941-1948
Brooklyn College 1946 - 1986
Yale Summer School of Art, Norfolk, CT 1952-1976
Adjunct at Cooper Union 1949-1959
San Paolo Brazil 3X
Italy CRAF. Lestans, Italy
Rencontres des la Photographie, Arles France
HONORARY DOCTORATE IN FINE ARTS, UNIVERSITY OF MARYLAND, BALTIMORE CAMPUS 1986