"United States Census, 1910," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/M29T-K1N : accessed 04 Aug 2014), Emma Hauck in household of Bertha Hauck, Houston Heights Ward 3, Harris, Texas, United States; citing enumeration district (ED) 45, sheet 2B, family 38, NARA microfilm publication T624, FHL microfilm 1375574.
"Texas, Deaths, 1890-1976," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/K3H1-82D : accessed 04 Aug 2014), Bertha Zahn in entry for Mary Mueller, 26 Jan 1959; citing certificate number 3215, State Registrar Office, Austin; FHL microfilm 2115873.
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