"Maryland Births and Christenings, 1650-1995," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:F48Q-J54 : 12 December 2014), Cathrine Elisabeth Brunner, 10 Jun 1842; citing ; FHL microfilm 13,935.
"United States Census, 1850," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MD4F-S8M : 12 April 2016), Catherine E Brunner in household of Lewis Brunner, Fredericktown, Frederick, Maryland, United States; citing family 492, NARA microfilm publication M432 (Washington, D.C.: National Archives and Records Administration, n.d.).