Mary was born about 1883. She immigrated to the USA in about 1906.
Sources
"United States Census, 1920," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MHYD-TZD : accessed 22 April 2018), Mary Zapletal in household of Frank Zapletal, Justice Precinct 1, Lavaca, Texas, United States; citing ED 113, sheet 3B, line 83, family 49, NARA microfilm publication T625 (Washington D.C.: National Archives and Records Administration, 1992), roll 1828; FHL microfilm 1,821,828.
"United States Census, 1930," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:H6VG-5PZ : accessed 22 April 2018), Mary Zapletal in household of Frank Zapletal, Precinct 3, Lavaca, Texas, United States; citing enumeration district (ED) ED 9, sheet 11A, line 9, family 206, NARA microfilm publication T626 (Washington D.C.: National Archives and Records Administration, 2002), roll 2369; FHL microfilm 2,342,103.
See also:
"Texas Deaths, 1890-1976," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:K361-KGX : 13 March 2018), Mary Kolar in entry for Louis Frank Zapletal, 19 Oct 1971; citing certificate number 74942, State Registrar Office, Austin; FHL microfilm 2,223,436.
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