and related: Kiliś, Kostewicz, Pawelski, Sadlakowski, Wyrzykowski...
Abt 1867-
| Teofil Kostewicz | |
| B: | Abt 1867 |
| Wola Smolana | |
Abt 1872-
| Jadwiga Kostewicz (maid. name Szczęsna) | |
| B: | Abt 1872 |
| M: | 1890 |
| Wola Kiełpińska, par. św. Antoniego | |
Yes, date unknown-
| Andrzej Kostewicz | |
| B: | Yes, date unknown |
1902-1904
| Antoni Filip Kostewicz | |
| B: | 1 May 1902 |
| Nuna | |
| D: | 17 Aug 1904 |
| Nuna | |
| Czesław Chester Kostewicz | |
| B: | 16 Jan 1904 |
| Nuna | |
| D: | Jan 1977 |
Yes, date unknown-
| Helena Kostewicz | |
| B: | Yes, date unknown |
1907-1919
| Anna Kostewicz | |
| B: | 1907 |
| Nuna | |
| D: | 10 Sep 1919 |
| Joseph Józef Kostewicz | |
| B: | 02 Aug 1910 |
| East Vandergrift, PA | |
| D: | 06 Oct 1993 |
| Catherine Kostewicz (maid. name Żak) | |
| B: | 1913 |
| Diamond, PA | |
| M: | 30 May 1938 |
| USA | |
| D: | 1982 |
| Helena Nowicki (maid. name Kostewicz) | |
| B: | 16 Feb 1912 |
| East Vandergrift, PA | |
| D: | 14 Jun 1985 |
| Natrona Heights, Allegheny, Pennsylvania | |
1912-1978
| Leonard A. Nowicki | |
| B: | 11 Aug 1912 |
| M: | 15 May 1934 |
| D: | 20 Apr 1978 |
| Aleksander Alex Kostewicz | |
| B: | 20 May 1918 |
| D: | 08 Aug 1996 |
| Henrietta Kostewicz (maid. name Żandarski) | |
| B: | 16 Nov 1919 |
| M: | 1940 |
| D: | 19 Jan 2015 |
| USA | |
| Stefan Stephen Kostewicz | |
| B: | 29 Sep 1921 |
| D: | 28 Dec 2001 |
| Seabrook, Cumberland, New Jersey | |
Yes, date unknown-
| Helen Kostewicz | |
| B: | Yes, date unknown |
| Władysław "Walter" Kostewicz | |
| B: | 04 Nov 1874 |
| Wola Smolana | |
| D: | 12 May 1955 |
| Waleria Kostewicz (maid. name Korycka) | |
| B: | 08 Sep 1882 |
| Psucin, nowodworski | |
| M: | 07 Oct 1900 |
| Nasielsk, nowodworski, mazowieckie, Polska | |
| D: | 12 Dec 1955 |
| PA, USA | |
1876-Yes, date unknown
| Szymon Kostewicz | |
| B: | 22 Oct 1876 |
| Wola Smolana | |
| D: | Yes, date unknown |
1879-Yes, date unknown
| Antoni Kostewicz | |
| B: | 1 Jun 1879 |
| Wola Smolana | |
| D: | Yes, date unknown |
1881-1882
| Józefa Kostewicz | |
| B: | 16 Mar 1881 |
| Wola Smolana | |
| D: | 1882 |
| Wola Smolana | |
Yes, date unknown-
| Franciszek Kostewicz | |
| B: | Yes, date unknown |
| Wola Smolana | |
Yes, date unknown-
| Antonina Kostewicz (maid. name Sikorska) | |
| B: | Yes, date unknown |
| Zbroszki, mazowieckie | |
| M: | 1895 |
| Winnica | |
Abt 1828-1881
| Antoni Kostewicz | |
| B: | Abt 1828 |
| Jaskółowo, mazowieckie | |
| D: | 7 May 1881 |
| Wola Smolana | |
Abt 1847-Yes, date unknown
| Julianna Kostewicz (maid. name Jabłońska) | |
| B: | Abt 1847 |
| D: | Yes, date unknown |
| Florentyna Byszczyńska (maid. name Szajkowska) | |
| B: | 1874 |
| Stanisławowo, par. Zegrze | |
Yes, date unknown-
| Stanisław Buszczyński | |
| B: | Yes, date unknown |
| M: | Yes, date unknown |
1879-
| Władysław Szajkowski | |
| B: | 1879 |
| Józefa Pawlak (maid. name Szajkowska) | |
| B: | 1881 |
| Stanisławów, par. Zegrze | |
Yes, date unknown-
| Jan Pawlak | |
| B: | Yes, date unknown |
| M: | 1900 |
| parafia Zegrze | |
1884-
| Józef Szajkowski | |
| B: | 1884 |
| Stanisławów, par. Zegrze | |
Abt 1875-
| Wiktoria Osińska (maid. name Szajkowska) | |
| B: | Abt 1875 |
Yes, date unknown-
| Józef Osiński | |
| B: | Yes, date unknown |
| M: | 1894 |
| par. Zegrze | |
Abt 1871-
| Marcjanna Pisarzewska | |
| B: | Abt 1871 |
Yes, date unknown-
| Jan Pisarzewski | |
| B: | Yes, date unknown |
| M: | 1900 |
| par. Zegrze | |
Abt 1868-
| Anna Chojnacka (maid. name Szajkowska) | |
| B: | Abt 1868 |
Yes, date unknown-
| Stanisław Chojnacki | |
| B: | Yes, date unknown |
| M: | 1886 |
| par. Zegrze | |
Abt 1842-1908
| Marianna Szajkowska (maid. name Kostewicz) | |
| B: | Abt 1842 |
| D: | 1908 |
| Stanisławowo par Zegrze | |
Yes, date unknown-
| Teofil Szajkowski | |
| B: | Yes, date unknown |
| M: | 1865 |
| Nasielsk, nowodworski, mazowieckie, Polska | |
Abt 1800-
| Mateusz Kostewicz | |
| B: | Abt 1800 |
Yes, date unknown-Yes, date unknown
| Joanna Kostewicz (maid. name Ciszewska) | |
| B: | Yes, date unknown |
| M: | Yes, date unknown |
| D: | Yes, date unknown |
Our family tree has over 10,000 pieces of data. We also have around 75,000 photos and thousands of documents in our collection.
This tree can continue to grow only thanks to the interest and cooperation of close and distant relatives who, finding their relatives here, would like to share their information, photos or documents.