Primarily incoming correspondence from Goodwin Knight, with some carbons of outgoing letters from Paul Mason, as well as newsclippings and some draft articles and speeches. The two close friends exchanged views, judgements, strategems and confidences as they fought elements of the right wing of the Republican party (Bill Knowland, Richard Nixon, Barry Goldwater, and the John Birch Society among others), at the twilight of the progressive era of the California Republican party. Of particular note are papers that document Nixon's attempt to bribe Knight out of the 1962 race for governor with the offer of a judgeship. Also interesting are Knight's commentaries on personalities and developments in both parties at the national as well as state level as he observed them covering events for his radio and TV broadcasts.

Materials documenting the activities of extreme right wing political groups in California and at the national level. The bulk of the material dates from the 1960s and early 1970s. The collection contains both political ephemera and periodicals.