Joseph N. Hettel has
been in two exhibitions at MoMA,
between 1936 and 1941.
8 June to 13 July 1936
Louis I. Kahn, William Lescaze, Ernestine Fantl and Oscar Stonorov, among others, were involved.
27 December 1940 to 12 January 1941
Pablo Picasso, Max Ernst, Jean (Hans) Arp and Alexander Calder, among others, were involved.