Scope and Contents The Samuel I. Hayakawa Papers document Hayakawa's term as a United States Senator. The collection comes from Hayakawa's San Diego-based regional office, one of five regional offices in California, and consists only of office records. The San Diego regional office  covered the counties of San Diego, Imperial Valley, Riverside, and San Bernardino. The records consist of biographical data on Hayakawa, correspondence, invitations, office memos, press releases,...