Mikulas Hlavni
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 | Josephine Petru 1860- |
| Josephine Petru | |
| B: | Mar 1860 |
| Bohemia, Czechoslovakia | |
| Paul Slatinsky 1861- |
| Paul Slatinsky | |
| B: | Sep 1861 |
| Monrovia | |
| M: | Abt 1882 |
| , , IL | |
| Quido Petru, Sr. 1860-1928 |
| Quido Petru, Sr. | |
| B: | Sep 1860 |
| Bohemia | |
| D: | 16 Aug 1928 |
| Chicago, IL | |
| Catherine Prucha 1862-1937 |
| Catherine Prucha | |
| B: | May 1862 |
| Bohemia | |
| M: | Abt 1887 |
| , , IL | |
| D: | 12 Feb 1937 |
| Chicago, IL | |
| Emanuel Petru 1865- |
| Emanuel Petru | |
| B: | Dec 1865 |
| Bohemia, Czechoslovakia | |
| Agnes Kopecky 1871- |
| Agnes Kopecky | |
| B: | May 1871 |
| Bohemia, Czechoslovakia | |
| Marie Petru 1866- |
| Marie Petru | |
| B: | Feb 1866 |
| , , Bohemia | |
| Thomas Kraus, Sr. 1866- |
| Thomas Kraus, Sr. | |
| B: | Mar 1866 |
| , , Bohemia | |
| Anna Petru 1874- |
| Anna Petru | |
| B: | May 1874 |
| Josephine Kosik 1829- |
| Josephine Kosik | |
| B: | Mar 1829 |
| Jan Jr. Petru, twin 1825-1902 |
| Jan Jr. Petru, twin | |
| B: | 10 Oct 1825 |
| Mlaola Vozice, Chotenicich, Bohemia, Czechoslovakia | |
| M: | 1853 |
| Dlouha Lhota, Utabor, Czechoslovakia | |
| D: | 16 Jul 1902 |
| Chicago, IL | |
| Joseph Mikulas Kosik 1881- |
| Joseph Mikulas Kosik | |
| B: | 11 Feb 1881 |
| Zdenka Zarubova | |
| M: | 13 Feb 1905 |
| Jan Nepomuk Kosik 1831- |
| Jan Nepomuk Kosik | |
| B: | 15 May 1831 |