Honor Flight Nevada-- Navajo Code Talkers.
 

WWII Navajo code talker sings the Marine... - Honor Flight Nevada

They are at the National Museum of the American Indian which I visited about two years ago.

Home Page | National Museum of the American Indian

Windtalkers (2002) - Rotten Tomatoes

I believe this man was the last of the original code talkers to pass away. At the time this article was written (2014) 35 of the 421 code talkers remained alive. Remarkable achievement by these patriotic men! Ya-at-eeh yaʼatʼeeh - Wiktionary

Last of original 29 code talkers passes away - Navajo Times