He decided to work delivering bread because bread was not as heavy as milk .
Following World War II , Sonic founder Troy N. Smith Sr. returned to his hometown of Seminole , Oklahoma , where he became employed as a milkman .
founder decided to work delivering bread because bread was not as heavy as milk .
Following World War II , Sonic founder Troy N. Smith Sr. returned to his hometown of Seminole , Oklahoma , where he became employed as a milkman .