The 1910 census has entry for the number of years married, they entered 5 years, Also 1 child 0 living, but it may have been from a previous marriage.

Name: Wm M Spears Event Type: Census Event Date: 1910 Event Place: Portland Ward 8, Multnomah, Oregon, United States Gender: Male Age: 47 Marital Status: Married Race: White Race (Original): White Relationship to Head of Household: Son-in-law Relationship to Head of Household (Original): Son-in-law Birth Year (Estimated): 1863 Birthplace: Ohio Father's Birthplace: Ohio Mother's Birthplace: Ohio Sheet Letter: A Sheet Number: 9 Household Role Sex Age Birthplace C W GayHeadM70Maine M A GayWifeF63Illinois Nellie V WaltonDaughterF43Oregon Frank S WaltonSon-in-lawM49Iowa Helen WaltonGranddaughterF17Washington Margaret WaltonGranddaughterF15Washington Wm M SpearsSon-in-lawM47Ohio Clara Gay SpearsDaughterF28Oregon District: ED 198 Sheet Number and Letter: 9A Household ID: 188 Affiliate Name: The U.S. National Archives and Records Administration (NARA) Affiliate Publication Number: T624 Affiliate Film Number: 1286 GS Film Number: 1375299 Digital Folder Number: 004973347 Image Number: 01171 "United States Census, 1910," database with images, <i>FamilySearch</i> (https://familysearch.org/ark:/61903/1:1:MLYK-QVY : accessed 23 November 2019), Clara Gay Spears in household of C W Gay, Portland Ward 8, Multnomah, Oregon, United States ; citing enumeration district (ED) ED 198, sheet 9A, family 188, NARA microfilm publication T624 (Washington D.C.: National Archives and Records Administration, 1982), roll 1286; FHL microfilm 1,375,299.

Name: Clara G Spears Titles and Terms: Event Type: Census Event Date: 1920 Event Place: Los Angeles Assembly District 72, Los Angeles, California, United States District: ED 373 Gender: Female Age: 35 Marital Status: Married Race: White Race (Original): White Can Read: Yes Can Write: Yes Relationship to Head of Household: Wife Relationship to Head of Household (Original): Wife Own or Rent: Birth Year (Estimated): 1885 Birthplace: Oregon Immigration Year: Father's Birthplace: Maine Mother's Birthplace: Illinois Sheet Letter: A Sheet Number: 12 Sheet Number and Letter: 12A Household ID: 303 Line Number: 35 Affiliate Name: The U.S. National Archives and Records Administration (NARA) Affiliate Publication Number: T625 Affiliate Film Number: 113 GS Film Number: 1820113 Digital Folder Number: 004964294 Image Number: 00543 Household Role Sex Age Birthplace Winman M Spears Head M 58 Ohio Clara G Spears Wife F 35 Oregon Citing this Record: "United States Census, 1920," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MH79-RVK : accessed 1 June 2017), Clara G Spears in household of Winman M Spears, Los Angeles Assembly District 72, Los Angeles, California , United States; citing ED 373, sheet 12A, line 35, family 303, NARA microfilm publication T625 (Washington D.C.: National Archives and Records Administration, 1992), roll 113; FHL microfilm 1,820,113. -

Name: Clara Gay Spears Event Type: Death Event Date: 1 Sep 1955 Event Place: Los Angeles, Los Angeles, California, United States Event Place (Original): Los Angeles, Los Angeles, California, United States Gender: Female Age: 71 Birth Year (Estimated): 1884 Father's Name: Charles W Gay Mother's Name: Mienerva Gilham Digital Folder Number: 005597975 Image Number: 02725 "California, County Birth and Death Records, 1800-1994", database with images, <i>FamilySearch</i> (https://familysearch.org/ark:/61903/1:1:QG2Y-8NWW : 26 September 2019), Mienerva Gilham in entry for Clara Gay Spears, 1955.