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- [S3794] Johan Georg Christening Record - 1748, (Name: Intellectual Reserve, Inc; Location: Salt Lake City, UT;), "Deutschland, Geburten und Taufen, 1558-1898," index, FamilySearch (https://familysearch.org/ark:/61903/1:1:NCVJ-D4Y : accessed 29 March 2015), Johann Georg Burckhardt, 04 May 1748; citing ; FHL microfilm 1,569,153.
- [S3932] Johann Georg Burckhardt Death Record -1748, (Name: Intellectual Reserve, Inc; Location: Salt Lake City, UT;), "Deutschland, Tote und Beerdigungen, 1582-1958," index, FamilySearch (https://familysearch.org/ark:/61903/1:1:JWBK-121 : accessed 31 March 2015), Burckhardt, ; citing Bd 3, reference Bd 3; FHL microfilm 1,569,153.
- [S2298] Burkhard and Strobel Family Records, Felder, Hans, (Name: Evangelical Church Rectory; Location: Lichtenstein, Germany; Date: 14 Nov 1979;), Obenland #24, received 20 Nov 1979; in reply to my (Cecilia Obenland Backhaus Joder) letter of 7 Nov 1979.
several generations of the Burkhard and Strobel and allied families 1716-1853
- [S3931] Johann Georg Burckhardt and Martha Bertsch Marriage Record, (Name: Intellectual Reserve, Inc; Location: Salt Lake City, UT;), "Deutschland, Heiraten, 1558-1929," index, FamilySearch (https://familysearch.org/ark:/61903/1:1:N877-Y96 : accessed 31 March 2015), Johannes Georg Burckhardt and Martha Bertsch, 13 Sep 1747; citing Unterhausen (Oa. Reutlingen), Württemberg, Germany; FHL microfilm 1,569,153.
- [S5371] The Burkhart Line, Meadors, Helen Gates, (Name: Meadors, Helen Gates; Location: LeRoy, IL; Date: Unknown;), accessed 28 April 2018.
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