Manuel Rivera has
been in two exhibitions at MoMA,
between 1960 and 1965.
20 July to 28 September 1960
Wilder Green, Antoni Tàpies, Frank O'Hara and Eduardo Chillida, among others, were involved.
19 April to 12 September 1965
Pablo Picasso, Richard Lindner, Hannah Höch and Betsy Jones, among others, were involved.