| 30th September 1898 |
Nikolaus Groß is born in Niederwenigern near Hattingen on the Ruhr
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| 2nd October 1898 |
Nikolaus Groß' baptism in the Catholic St. Mauritius parish church in Niederwenigern
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| 11st March 1901 |
Elisabeth Koch is born in Niederwenigern
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| 1905 - 1912 |
Nikolaus Groß attends the school in Niederwenigern
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| Easter 1907 till 31st March 1915 |
Elisabeth Koch attends the school in Niederwenigern
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| 30th March 1913 |
Holy communion of Elisabeth Koch |
| 22nd May 1914 |
Confirmation of Elisabeth Koch |
| June 1917 |
Nikolaus Groß joins the Association of Christian miners of Germany;
attending evening courses and rhetorical seminars
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| 1918 |
Nikolaus Groß joins the German "Zentrumspartei"
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| 6th June 1919 |
Nikolaus Groß joins the St. Antonius Association of (young) mine workers in Niederwenigern
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| 24. Mai 1923 |
Church wedding of Elisabeth Koch and Nikolaus Groß
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| Beginning of October 1944 |
Elisabeth Groß moves to Niederwenigern
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| 23rd January 1945 |
Elisabeth Groß returns to Niederwenigern after she's written to the Gestapo to find out the whereabouts of her husband and after she's visited her husband
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| February 1945 |
Funeral service for Nikolaus Groß in the St. Mauritius church in Niederwenigern on 12th February 1945 and in the St. Agnes church Cologne on 16th February 1945
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