Timeline Chart

Male  Richard Groß
Female  Martha Helzer
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1868--
1872--
1876--
1880--
1884--
1888--
1892--
1896--
1900--
1904--
1908--
1912--
1916--
1920--
1924--
1928--
1932--
1936--
1940--
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1956--
1960--
1961--
Birth -- 18 September 1873
Birth -- 27 May 1874
Death -- 13 March 1940 ‎(Age 65)‎
Death -- 26 November 1956 ‎(Age 83)‎










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