"United States Census, 1900," database with images, FamilySearch (
https://familysearch.org/ark:/61903/1:1:M9PM-16T : accessed 10 January 2016), Ida D Spence in household of John G Spence, Alameda Township, Precinct 13 Alameda city, Alameda, California, United States; citing sheet 3A, family 50, NARA microfilm publication T623 (Washington, D.C.: National Archives and Records Administration, n.d.); FHL microfilm 1,240,081.