Subject index to Minutes of Board of Supervisors. Only 2 pages are used, showing incomplete entries under "T" and "R." Index to: General Minutes (498). Index shows: Date; Subject; Nature of Proceedings; Recorded (Book, Page). Listed in the 1980 inventory of the Sonoma County Clerk's office as: no. 500: General Index to Minutes of the Board of Supervisors, A to Z Subjects.