This oral history interview with Charles O. Porter was conducted by Jim Strassmaier at Porter's office in Eugene, Oregon, from July 18 to November 7, 1986. In this interview, Porter discusses his family background and early life in Eugene, including his education at Eugene High School, working for newspapers in the area, and his early political ambitions. He then talks about attending Harvard. He speaks at length about his experiences in Panama, and later in Europe, during World War II. He then talks about returning to Harvard, job prospects, and returning to Oregon to take a job on the state Highway Commission. He discusses practicing law in Eugene, including his experience with various judges, some of the cases he worked on, and the administration of justice. He then talks about getting involved in politics, including being offered the position of assistant to the U.S. attorney general by Monroe Sweetland. He turned down the offer and ran for Congress instead.

Porter discusses representing the Fourth District of Oregon in the U.S. House of Representatives from 1956 to 1960, particularly his campaigns. He talks about his fellow legislators, including Wayne Morse, Maurine Neuberger, Edith Green, and Joseph McCarthy. He discusses parliamentary procedure and legislation he worked on, particularly on foreign policy in Latin America. He also talks about his relationship with the press; his involvement with Amnesty International; and his activities as a lawyer after his 1960 re-election loss. He discusses many of the cases he worked on, including on prisoners' rights, fluoridation, sterilization, and a case against the Air Force. He closes the interview by talking about his family and the livability of Oregon.