"United States Census, 1850," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MD44-7JB : 12 April 2016), James A Disney in household of John W Disney, Baltimore, ward 6, Baltimore, Maryland, United States; citing family 770, NARA microfilm publication M432 (Washington, D.C.: National Archives and Records Administration, n.d.).