The largest and most comprehensive exhibition on the Navajo Code Talkers of World War II will be on display at the Gallup Cultural Center through Jan. 29.Part of the Southwest Inaugural 2009 Tour of "Our Fathers, Our Grandfathers, Our Heroes," the exhibit traces the story of the famed U.S. Marine Corps Navajo Code Talkers. It begins with the original pilot group of 29 volunteers, who in 1942 developed and tested the original Navajo Code. Proven fast and accurate, the Marine Corps recruited nearly 400 more Navajos who utilized the code, sending and receiving encrypted messages throughout the Pacific island hopping campaign. The ingenuity of the Navajo Code Talkers baffled Japanese cryptographers and greatly helped in the effort to win the war in the South Pacific.Of the original Code Talkers, about a handful are still living, most in Arizona and New Mexico.