Dorothy McNulty was born in 1918 in Minnesota, Ottertail County, near Phelps Mill, the daughter of Martin and Hattie (Northup) McNulty . Dorothy married Donald F. Peterson. The family moved to Glasgow, Montana, along with Uncle Simeon Northup. Donald and Dorothy had 5 children. Dorothy died at the Immanuel Lutheran Home in Kalispell, Mt., where she had been living for the last 6 years of her life. She was 91 years old.

Children of Donald and Dorothy Peterson