When Johann Leroy Anderegg was born on 22 April 1899, in Bern, Bern, Switzerland, his father, Peter Anderegg, was 29 and his mother, Margarita Staehli Roth, was 27. He married Josephine Marie Smith on 19 August 1930, in Box Elder, Utah, United States. They were the parents of at least 1 son. He died on 17 January 1968, in Pocatello, Bannock, Idaho, United States, at the age of 68, and was buried in Mountain View Cemetery, Pocatello, Bannock, Idaho, United States.