When Louise Dorothea Feddersen was born on 13 March 1892, her father, Timotheus Hilarius Fim Feddersen, was 42 and her mother, Erna Christine Ingwersen, was 35. She married Alva Mahon Crasper on 30 December 1914, in Camanche, Clinton, Iowa, United States. They were the parents of at least 2 daughters. She lived in Center Township, Clinton, Iowa, United States in 1920 and Clinton, Clinton, Iowa, United States in 1925. She died on 9 February 1966, in Cedar Rapids, Linn, Iowa, United States, at the age of 73, and was buried in Masonic Cemetery, Tipton, Cedar, Iowa, United States.