Name and birth year from Amy Rodrick.

In the California marriage Records
Marriage January 27 1909, Los Angeles, California, Marguerite E. Deare and Irven P. Dawson

In the 1920 US Census
Pennsylvania Street, Vallejo, Solano, California
Head Irwin P. Dawson, age 32, born Illinois, machinist, Navy Yard
Wife Margeritte E. Dawson, age 26, born Illinois
Daughter Eulolia M. Dawson, age 8 years 7 months, born California, parents born Ilinois
Daughter Marquitta D. Dawson, age 6 years 6 months, born California, parents born Illinois

In the 1930 US Census
B Street, Vallejo, Solano, California
Head Peter E. Dawson, age 41, born Illinois, parents born Illinois, machinist shipyard
Wife Margueritte Dawson, age 37, born Illinois, father born England, mother born Illinois
Daughter M. Eulalia Dawson, age 18, single, born California, parents born Illinois
Daughter Marguitta Dawson, age 16, born California, parents born Illinois

In the 1940 US census
Yahome Avenue, Napa Township, Napa County, California
Head Irwin Dawson, age 51, born Illinois, in 1935 lived in Valledo, Solano, California, painter U.S. Shipyard
Wife Marguerite Dawson, age 45, born Illinois, in 1935 lived in Valledo, Solano, California
Mother-in-Law Magnolia Deare, age 71, widow, in 1935 lived in Valledo, Solano, California

California Death Index
Marguerite Schafer [Marguerite Deare]
Birth Date: 3 Feb 1893
Birth Place: Illinois
Death Date: 13 Nov 1986
Death Place: Solano
Mother's Maiden Name: Camp
Father's Surname: Deare

findagrave.com
Marguerite Dawson
Birth1893, Illinois, USA
Death unknown
Burial Tulocay Cemetery
Napa, Napa County, California, USA
Memorial ID 167272993
Family Members Irvin Porter Dawson 1888 - 1949