Oral history interview with Julia E. Johnson, conducted by Deborah M. Olson in five sessions, from July 20 to November 11, 1987. Johnson discusses her early life in Jacksonville, Oregon; the operations of the Opp mine, which was owned and operated by her father, John Wesley Opp; teaching at Grant High School in Portland from 1926 to 1944; her involvement with the Girl Scouts of America; and her involvement with the Republican Party of Oregon.