Robert Janssen has
been in two exhibitions at MoMA,
between 1946 and 1950.
18 June to 15 September 1946
Max Ernst, Piet Mondrian, William Zorach and Harry Callahan, among others, were involved.
1 August to 17 September 1950
Harry Callahan, Irving Penn, Robert Frank and Charles Eames, among others, were involved.