Research Guides: Immigrant Representation in Broadcasting:

"Americans All, Immigrants All" (CBS radio, 1938-39) tried to acknowledge the contributions that various immigrant groups had made to the United States. The program wanted to make immigrants a part of the official narrative of U.S. history.

Introduction to "Americans All, Immigrants All"
From the New York Public Radio Archives & Preservation, a part of WNYC radio.
"Americans All Immigrants All" episodes
A sampling from the New York Public Radio Archives & Preservation.
A Standard for the Wise and Honest: The "Americans All, Immigrants All" Radio Broadcasts
Dan Shiffman
Studies in Popular Culture
Vol. 19, No. 1 (October 1996), pp. 99-107
"Americans All, Immigrants All" Study Guide (1939)
Published by the United States Department of the Interior, Office of Education.
"Americans All, Immigrants All" Episode Guide
From the Digital Deli website, a list of episodes plus some contemporary newspaper articles.

Map of "cultural gifts" from "Americans All... Immigrants All" (via WNYC website).