The collection contains materials created by or about Loyd C. Sigmon from 1945 to 2008. Items relate to his interest in radio broadcasting, the creation of SigAlert (a traffic and emergency alert system), and his inventions. Books, plaques, articles, newspaper clippings, biographical materials, blueprints, and notebooks, are found within the collection.

Loyd C. Sigmon was born in Stigler, Oklahoma on May 6, 1909 to a cattle-ranching family. He went to school at Wentworth Military Academy and Massachusetts Institute of Technology. He was interested in radio as a young man, and earned his his amateur radio license (W6LQ) at age 14. His broadcasting career began in 1932 at the Boston Short Wave and Television Laboratories. In 1941, he was hired as an engineer for MacMillan Petroleum Company's flagship radio station, KMPC, in Los Angeles, California.

1.69 Linear Feet (2 boxes)

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