Official records generated or commissioned by the Sonoma County Board of Supervisors. Includes official reports, minutes, petitions, registers, etc.

The core of this collection (67 boxes) was described no. 592 as part of the Records of the Clerk as Clerk of the Board of Supervisors in the 1980 Inventory of the Clerk of Sonoma County, with the following contnts:

Inactive administrative files of Board of Supervisors. Files of 1854-1930 are divided both by subject and by varying dates, so that the same kind of documents are found among a number of storage boxes. Files of 1930-1974 follow the alphabetical and subject arrangement of (Administrative Files--Board of Supervisors) (591) from which they have been transferred for storage. Some records correspond to documents listed in Records of the Clerk as County Clerk in this inventory. Searchers should consult the typewritten index in the Board of Supervisors Filing Room which duplicates the labels on the storage boxes. Some labels, however, are not accurate and others are incomplete.

A selection of the most extensive documents, 1854-1930 includes: Indigent petitions 1876, 1879-1918; Investigations of indigents 1916; Report of Social Service Commission 1918-1929; Report of County Health Nurse 1920-1921; Report of County Hospital and Farm 1878, 1883, 1885, 1887-1929; Annual Report of County Health Officer 1902-1929; Monthly report of prisoners in County Jail 1895-1929, 1932, 1933; Road petitions 1854-1927, for Analy, Bodega, Cloverdale, Fulton, Knight's Valley, Mendocino, Ocean, Petaluma, Redwood, Russian River, Salt Point, Santa Rosa, Sonoma, Vallejo and Washington Townships or Road Districts; Report of Road Master and Report of Road Commissioner, by road district, 1866, 1872-1895, 1893-1894, 1895, 1896, 1897-1904, 1899-1905; Road matters 1854-1907, 1871- 1909, 1900-1922; 1913-1927; including viewer's reports, petitions, plans and specifications; petitions for abandonments 1861-1927, 1892; bridges 1908-1923; road construction 1918-1923; Road Overseers' reports for various road districts, 1854-1868, 1856, 1866-1873, 1873-1877, 1880, 1883-1888, 1888-1894; Clerk's Memorandum for payment of charges to Indigent, General and Road funds, 1897-1909, 1914-1917; Auditor's Report 1883-1886, 1889- 1925; Treasurer's Report and Road District Balance 1902-1927; Inventory of County Property 1887-1916, 1922, 1924; Justice of the Peace reports 1882-1916; Coroner's Report 1885-1908; Reports of Horticultural Commissioner 1889-1928; Annual report of Trustees of Law Library 1899, 1900, 1903; Reports of County Surveyor and County Engineer 1885, 1907, 1916-1926; Report on County Automobiles 1916-1918; Bids and requisitions for supplies and services 1872-1918; Agreements, contracts, leases and bonds 1898-1925; deeds 1888-1896; Bids for courthouse 1907-1909; Claims paid or rejected 1862-1924; Franchise matters 1897-1926; Pound matters 1876-1924; Mosquito Abatement District 1912-1917; Reclamation District 1922-1924; Drainage 1893-1916; Advertising of Sonoma County 1891-1922; Petitions for school-district formation, boundary changes, annexations, and tax protests 1855-1926; School census by district 1887-1906; School bonds and tax elections 1890-1926; Petitions concerning: Election precincts, township and road-district boundaries, Appointments to County positions, 1855-1930; To disinter remains 1890-1905; To establish a free library 1916; For and against liquor licenses 1899-1918; and many other petition matters; Court orders to draw trial jurors 1881-1926, and to empanel Grand Jurors 1882-1925; Tax and licensing matters 1882-1926; Ordinance Nos. 10-50; Name lists of firemen 1885, 1890, 1929, and National Guard 1890.

Documents after 1930 are alphabetical and subject files, divided roughly 1927-1957, 1957-1964, 1960-1972, and 1969-1974. Subjects include Abandonments, School bonds, Treasurer's reports, Agreements, Hospital matters, Buildings, Boundary Commission, Bridges, Grand Jury reports, Trial jurors, Indigents, Board of Equalization, Contracts, Claims, Insurance, Ordinances, School districts, Fairgrounds, Social Service Department, Leases, Road matters, Deeds, Flood Control and Water Conservation District, Special districts and elections in special districts, Reports of county departments, Petitions, Bids and specifications, Easements, Audit reports, Subdivision matters, and County and state agencies. Arranged by subject, then chronologically by month or year.