Robert Friedrich Kosak 1896–1905 | | |
| | Emil Ernst Kosak 1897–1967 Emma Emilie Zansinger 1902–1976 | | |
Richard Ewald Kosak 1898–1899 | | |
Auguste Karoline Kosak 1899–1899 | | |
| | George T. Barrett 1883–1961 | | |
Gustav Robert Kosak 1905–1905 | | |
Walter Hermann Kasak 1908–1911 | | |
Arthur R. Kosak 1911–1967 Belva Effie Eggemann 1903–1992 | | |
Johann Alexander Kosak 1913–1917 | | |
| | Johann Hermann Kosak 1873–1952 Justine Philipp 1869–1922 | | |