The indexing of Sonoma County newspapers was undertaken to help fill in the gaps in some of the early records in Sonoma County. The first volume, which covers the period from 1854 through 1875 was published early in 2001. Ten additional volumes have been published covering the period through 1918. The present volume contains an index of surnames found in those papers published in Sonoma County between 1919 and 1921 and contains more than 13,900 entries. Some of the entries include residents from the surrounding counties of Marin, Napa, Solano, Lake, and Mendocino.