Franklin Mccormack

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Franklin W. McCormack, a medical x-ray technician from San Francisco, California was born in Illinois in 1882. He married a girl from Missouri named Anna G before moving to California. According to a 1920 United States Census Mr. and Mrs. McCormack had two children, Donald and Marjorie. McCormack was the first to put the paralleling technique into use in intraoral dental radiography. In 1911 he opened one of the first dental x-ray lab in San Francisco, California. He hand wrapped dental films in black paper, to add support he placed a metal plate with the films and then wrapped both in wax paper to put in the patient’s mouth. He used metal plate backing to prevent backscatter radiation on the film. In 1935, McCormack started using a hemostat

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