1920 U. S. Census, Butler County, Pennsylvania, population schedule, , ; digital images, Ancestry.com (www.ancestry.com : accessed ); National Archives and Records Administration.
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Title 1920 U. S. Census, Butler County, Pennsylvania, population schedule, , ; digital images, Ancestry.com (www.ancestry.com : accessed ); National Archives and Records Administration. Short Title 1920 Census for Butler County, Pennsylvania Source ID S3196 Linked to Alma Belle Irwin
David Burton McQuiston