John Dennis Fitzgerald (February 3, 1906 – May 21, 1988) was an American author.Fitzgerald was born in Price, Utah, the son of an Irish Catholic father and a Scandinavian Mormon mother. He left Utah in 1925, at the age of 18, and held a variety of jobs, including playing in a jazz band, working at a bank and working for a steel company.Fitzgerald published his first novel, Papa Married a Mormon, in 1955. Other novels for adults about late nineteenth and early twentieth century Utah followed.