When Frank Leclair Wilson was born on 18 February 1859, in Nemaha, Nebraska, United States, his father, William Francis Wilson, was 26 and his mother, Anna Maria McKenzie, was 21. He married Wilhelmina Rasmussen on 29 July 1902. They were the parents of at least 4 sons and 2 daughters. He lived in Nebraska, United States in 1870 and Midland Election Precinct, Lancaster, Nebraska, United States in 1880. He died on 30 October 1939, in Salt Lake City, Salt Lake, Utah, United States, at the age of 80, and was buried in Salt Lake City, Salt Lake, Utah, United States.