"Maryland, Baltimore Passenger Lists, 1820-1948," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:QK6L-4FSV : 15 March 2018), Franz Andra, ; citing Immigration, Baltimore, Baltimore, Maryland, United States, NARA microfilm publications M255, M596, and T844 (Washington, D.C.: National Archives and Records Administration, n.d.); FHL film 417,395.
Maryland, Baltimore Passenger Lists Index, 1820-1897, database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:QV9X-TGRN : 16 March 2018), F Anderle, 1861; citing NARA microfilm publication M327 (Washington D.C.: National Archives and Records Administration, n.d.); FHL microfilm 417,214.
"United States Census, 1900," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MMRM-4ZK : accessed 7 March 2020), Frank Andira, Brule, Grandview & Ola Townships, Brule, South Dakota, United States; citing enumeration district (ED) 62, sheet 4B, family 69, NARA microfilm publication T623 (Washington, D.C.: National Archives and Records Administration, 1972.); FHL microfilm 1,241,547.
"United States Census, 1920," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M6JC-7JM : accessed 7 March 2020), Frank Andera, Sr in household of Winnie Andera, Ola, Brule, South Dakota, United States; citing ED 22, sheet 4A, line 4, family 1, NARA microfilm publication T625 (Washington D.C.: National Archives and Records Administration, 1992), roll 1716; FHL microfilm 1,821,716.
"United States Census, 1930," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:XQJY-DN5 : accessed 7 March 2020), Frank Andera in household of Frank M Andera, Ola, Brule, South Dakota, United States; citing enumeration district (ED) ED 12, sheet 1B, line 71, family 15, NARA microfilm publication T626 (Washington D.C.: National Archives and Records Administration, 2002), roll 2219; FHL microfilm 2,341,953.