George Day was born on 24 February 1925 in Sioux City, Iowa, USA. He was married to Doris Marlene Sorensen. He died on 27 July 2013 in Fort Walton Beach, Florida, USA.
He attended Central High School in Sioux City. He earned his bachelor's degree and a Doctor of Humane Letters from Morningside College in Sioux City. He was awarded a Master of Arts degree from St. Louis University, a Juris Doctor from the University of South Dakota and a Doctor of Laws from Troy State University. He was admitted to the South Dakota Bar in 1949 and in Florida Bar in 1977.