Clarance Edward Henson (1916–2003) was a radio engineer, entrepreneur and wartime developer of Long Range Navigational Radar (LORAN). He was born in Oil City, Louisiana, in 1916, to Louisa and Samuel Henson. [1] After Samuel's death in 1921, Henson moved frequently, growing up in Smackover, Arkansas, Palestine, Longview, Henderson, and Kilgore in Texas before graduating from high school in Fort Smith, Arkansas.