In addition to officiating in the NFL, Barth was the president of an oil company. Barth was born February 1, 1930 in St. Louis, Missouri. and died October 11, 1991 in St. Charles, Missouri. He graduated from Saint Louis University. He was president of Bonified Gas Company, a family owned business. He participated in the St. Louis Senior Olympics, in 1989 and 1990.