document their marriages, although many were married in the 1930s and 1940s in undocumented tribal ceremonies. Language and cultural barriers pose further obstacles to Navajo downwinders; since many elderly Navajos do not speak English, their children bear the responsibility to do the research and procure from a tribal law judge a validation certificate of their tribal marriage. Similarly, it is difficult to access the outdated medical and occupational documentation that the government required even though the government's and uranium companies' own records for Navajo miners are sparse and difficult to access. See also Chernobyl disaster Nevada-Semipalatinsk New Zealand's nuclear-free zone Project 4.1 Windscale fire Atomic veteran The Plutonium Files References External links Nuclear Testing and the Downwinders from the website of the Utah State Historical Society View documentary short "Downwinders: The People of Parowan" Article "A people's truth" Excerpt from Plutopia Academic Journal Article “Downwind of the Atomic State: U.S. Continental Atmospheric Testing, Radioactive Fallout, and Organizational Deviance, 1951–1962” Anti–nuclear weapons movement Environmental issues in the United States Nuclear weapons testing Radiation health effects History of the Southwestern United States History of Nevada History of Utah History of Washington (state) History of the Marshall Islands Environment of Nevada Environment of Utah Environment of Washington (state) Environment of the Marshall Islands