Gibson was born on March 6, 1901, in Brattleboro, Vermont, the son of Grace Fullerton Hadley and Ernest W. Gibson, who later served in the United States House of Representatives and United States Senate. He attended the public schools and graduated from Norwich University with an Artium Baccalaureus degree in 1923, where he was a member of the Alpha chapter of Theta Chi International Fraternity.
Gibson was born on March 6, 1901, in Brattleboro, Vermont. His parents were Grace Fullerton Hadley and Ernest W. Gibson, who later served as members of Congress. He attended public schools and graduated from Norwich University with an Artium Baccalaureus degree in 1923, where he was a member of the Alpha chapter of Theta Chi International Fraternity.