Artificial Collection grouped by provenance. The Buttons Collection consists of over 300 items originally forming part of personal papers or organizational records. Among these are Justo A. Marti, Pura Belpré, José López, Ruth M. Reynolds, Petra Allende, Centro and the National Congress for Puerto Rican Rights. Though the majority of the items are Puerto Rican, the collection also includes other Latinos, particularly Mexican-Chicanos. The buttons are predominantly political in theme, representing elected officials, such as Herman Badillo, or the struggle in Vieques to remove the U.S. Navy from the island. Many also represent organizations, such as the National Congress for Puerto Rican Rights, ASPIRA and Fiesta Folklorica. A highlight of this collection are items from the José López Papers, which include buttons for the United Farm Workers, the UFW boycott and César Chávez. López was a labor organizer in New York City who was a supporter and participant in the UFW boycott.