When Wilbur Christian Yancy was born on 14 October 1891, in Peebles, Fond du Lac, Wisconsin, United States, his father, Haskell Solomon Yancy, was 23 and his mother, Anna Wagner, was 23. He married Inga Anderson on 9 February 1916, in Menominee, Menominee, Michigan, United States. They were the parents of at least 3 daughters. He lived in Winnebago, Wisconsin, United States in 1935 and Wisconsin, United States in 1970. He died on 27 July 1970, in Oshkosh, Winnebago, Wisconsin, United States, at the age of 78, and was buried in Winchester, Winnebago, Wisconsin, United States.