"United States Census, 1850," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MZ4D-WP4 : 12 April 2016), John Budd in household of D A Budd, Burlington, Des Moines, Iowa, United States; citing family 1255, NARA microfilm publication M432 (Washington, D.C.: National Archives and Records Administration, n.d.).