The Udall Brothers: Voices for the Environment was originally a traveling exhibition which toured the United States from 2005 - 2007.  Original tour locations included: The United States Department of the Interior Museum Wahington D.C.; Arizona Capital Museum Phoenix, Arizona; University of Arizona Law Library Tucson, Arizona; City of St. Johns, Arizona; and United States Geological Survey Earth Resources Observation and Science (EROS) Center Garretson, South Dakota. 

The traveling exhibition was curated by University of Arizona Library Udall Interns, Miguel A. Figeroa, Jennifer R. Walele, Danielle C. Johnson, Erika B. Castaño, and Special Collections Librarian, Bonnie Travers. 

The digital exhibit was curated and updated in Spring 2022 by R. Rose Reza, Knowledge River Scholar under the direction of Erika B. Castaño, Digital Initiatives Archivist & University of Arizona History Curator, University of Arizona Libraries, Special Collections. 

Steve Hussman, Curator for Political Affairs Collections provided additional content editing and review in June 2022.

Additional thanks to and support of this exhibition: 

The Udall Foundation 

Verónica Reyes-Escudero, Katheryne B. Willock Head of Special Collections, University of Arizona Libraries; and Steve Hussman, Curator for Political Affairs Collections, University of Arizona Libraries, Special Collections.