When Orvil Kib Maust was born on 3 February 1913, in Canton, Fillmore, Minnesota, United States, his father, Sherman Henry Maust, was 47 and his mother, Cora Lee Treadaway, was 35. He married Mathilda Vang on 1 March 1937, in Decorah Township, Winneshiek, Iowa, United States. They were the parents of at least 1 daughter. He lived in Canton Township, Fillmore, Minnesota, United States in 1920. He died on 9 February 1981, in Portland, Multnomah, Oregon, United States, at the age of 68, and was buried in Portland, Multnomah, Oregon, United States.