Abt 1830 - Yes, date unknown
| Vera Kost | |
| B: | Abt Apr 1883 |
| MN | |
| D: | Yes, date unknown |
| Walter Kost | |
| B: | Abt Jun 1887 |
| MN | |
| D: | Yes, date unknown |
| Marx Kost | |
| B: | Abt 1860 |
| NY | |
| D: | Yes, date unknown |
| Margaret Kost() | |
| B: | Abt Jun 1858 |
| NY | |
| M: | 1881 |
| D: | Yes, date unknown |
| Frederick William Kost, ^ | |
| B: | 15 May 1861 |
| New York, New York, NY | |
| D: | 23 Feb 1923 |
| Brookhaven, Brookhaven, Suffolk, NY | |
| Mary S. Van Zandt | |
| B: | 1855 |
| New Jersey, United States | |
| M: | 7 Apr 1877 |
| South River, Middlesex, New Jersey, United States | |
| D: | Yes, date unknown |
| Emma Kost, ^ | |
| B: | Abt 1863 |
| NY | |
| D: | Yes, date unknown |
| Anna Kost, ^ | |
| B: | 1864 |
| NY | |
| D: | 13 Dec 1951 |
| Grymes Hill, Richmond (Staten Island), New York, NY | |
| Annae Catharina Eitert, > | |
| B: | Abt 1830 |
| Bavaria, Germany | |
| D: | Yes, date unknown |
| Joseph Kost, > | |
| B: | Abt Sep 1828 |
| Coblentz, Germany | |
| M: | 7 Oct 1823 |
| Liebfrauen Katholisch, Koblenz Stadt, Rheinland, Prussia | |
| D: | Yes, date unknown |
