The April 7, 1962 criticality accident involving human exposures was the first to have occurred in any production facility at Hanford. The accidental nuclear excursion did not result in any mechanical damage or spread of contamination. Three employees received over-exposure to gamma and neutron radiation. None were fatally exposed and in each case the over-exposure was recognized promptly. Following an initial period of medical observation and testing, the men were released to work. They continued to be followed clinically. Clinical studies performed were hematological procedures including leukocyte chromosome aberrations, morphologically aberrant blood cells, bone marrow evaluations, blood chemistry determinations, amino acid excretion studies, seminal fluid, urinary gonadotropins and estrogen excretion studies, testicular biopsies and crystalline lens examinations. These studies, along with a brief description of the accident and of the dosimetry, are summarized in this report by those participating in the studies. In view of the dose ranges received in these cases, both the negative and positive findings are considered to be of unusual interest due to the lack of knowledge of effects following human exposures at these levels.

Script from the WBAP-TV/NBC station in Fort Worth, Texas, covering a news story about the fifth annual Celebrity Breakfast in Fort Worth.

Script from the WBAP-TV/NBC station in Fort Worth, Texas, covering a news story about Denton's Morrison Milling Company having an anniversary celebration.

Script from the WBAP-TV/NBC station in Fort Worth, Texas, covering a news story about Miss America, Lila Masson, visiting Denton.

Script from the WBAP-TV/NBC station in Fort Worth, Texas, covering a news story about a fire in Fort Worth.

Script from the WBAP-TV/NBC station in Fort Worth, Texas, covering a news story about the Fort Worth Children's Museum staging a pet show.

Script from the WBAP-TV/NBC station in Fort Worth, Texas, covering a news story about the Dallas Sports Show in Fair Park.

Daily newspaper from Oklahoma City, Oklahoma that includes local, state, and national news along with advertising.

Weekly student newspaper from Texas Western College in El Paso, Texas that includes campus news and information along with advertising.

Student newspaper of the University of Oklahoma in Norman, Oklahoma that includes national, local, and campus news along with advertising.

From abstract: "The adsorption of ethane, ethylene and acetylene on clean iridium in a field emission microscope has been found to cause characteristic changes in the work function of the iridium surface. Further changes, which are time and temperature dependent, result when such surfaces are heated. Flash filament experiments have shown that the changes in work function upon heating are due to desorption reactions and that the desorbed product consists principally of hydrogen. By assuming a linear relationship between surface coverage and work function, it has been possible to determine the desorption kinetics from the observed rates of work function change at various temperatures. The results are consistent with a mechanism involving stepwise surface dehydrogenation in which a pair of hydrogen atoms is removed from the hydrocarbon molecule in each step, followed by desoption of the adsorbed hydrogen. At very high temperatures the remaining carbon atoms are removed, presumably by evaporation."

Daily newspaper from Oklahoma City, Oklahoma that includes local, state, and national news along with advertising.

Daily newspaper from McAlester, Oklahoma that includes local, state, and national news along with advertising.

Letter from I. H. Kempner to Lyda Ann and Jerry Thomas discussing Lyda Ann asking for Kempner to get tickets to a luncheon in Washington for them and Kempner explaining that a hotel reservation was made for them for the trip.

Daily newspaper from Abilene, Texas that includes local, state, and national news along with advertising.