and related: Kiliś, Kostewicz, Pawelski, Sadlakowski, Wyrzykowski...
| Andrzej Kostewicz |
| Andrzej Kostewicz | |
| B: | Yes, date unknown |
| Antoni Filip Kostewicz |
| Antoni Filip Kostewicz | |
| B: | 1 May 1902 |
| Nuna | |
| D: | 17 Aug 1904 |
| Nuna | |
| Czesław Chester Kostewicz |
| Czesław Chester Kostewicz | |
| B: | 16 Jan 1904 |
| Nuna | |
| D: | Jan 1977 |
| Helena Kostewicz |
| Helena Kostewicz | |
| B: | Yes, date unknown |
| Anna Kostewicz |
| Anna Kostewicz | |
| B: | 1907 |
| Nuna | |
| D: | 10 Sep 1919 |
| Michelle Reigard (maid. name Kostewicz) | |
| B: | 4 Apr 1971 |
| Nolan Reigard |
| Nolan Reigard | |
| B: | 4 Apr 1971 |
| Susan Kostewicz |
| Susan Kostewicz | |
| B: | 29 Apr 1975 |
| Roger Kostewicz |
| Roger Kostewicz | |
| B: | 2 Jun 1976 |
| Ryszard Richard Kostewicz | |
| B: | 08 Jun 1940 |
| Natrona, Spruce street, Pensylvania, USA | |
| Maryann Kostewicz (maid. name Głogowska) | |
| B: | 29 Apr 1943 |
| Natrona Hts | |
| M: | 29 Apr 1969 |
| Lori Baranowski (maid. name Kostewicz) | |
| B: | 24 Apr 1973 |
| Leyann McDonald (maid. name Kostewicz) | |
| B: | 22 Mar 1976 |
| Richard McDonald |
| Richard McDonald | |
| B: | Yes, date unknown |
| Bernard Kostewicz |
| Bernard Kostewicz | |
| B: | 14 Dec 1945 |
| Marlene Kostewicz (maid. name Katora) | |
| B: | 21 Jul 1947 |
| M: | 6 Feb 1970 |
| Jason Jaskey |
| Jason Jaskey | |
| B: | Yes, date unknown |
| Delores Jaskey (maid. name Kostewicz) | |
| B: | 1947 |
| Natrona Heights, PA | |
| Unknown |
| Jasen Jaskey |
| Jasen Jaskey | |
| B: | Yes, date unknown |
| Amanda Jaskey |
| Amanda Jaskey | |
| B: | Yes, date unknown |
| Richard Jaskey |
| Richard Jaskey | |
| B: | 1943 |
| New Kensington, PA | |
![]() | Mathew Kostewicz |
| Mathew Kostewicz | |
| B: | 31 Oct 1984 |
| Kayleen "Kay" Kostewicz |
| Kayleen "Kay" Kostewicz | |
| B: | 1987 |
| Pittsburgh, PA | |
| David Kostewicz |
| David Kostewicz | |
| B: | 1954 |
| Sandy Kostewicz |
| Sandy Kostewicz | |
| B: | 1955 |
| New Kensington, PA | |
| Joseph Józef Kostewicz |
| Joseph Józef Kostewicz | |
| B: | 02 Aug 1910 |
| East Vandergrift, PA | |
| D: | 06 Oct 1993 |
| Catherine Kostewicz (maid. name Żak) |
| Catherine Kostewicz (maid. name Żak) | |
| B: | 1913 |
| Diamond, PA | |
| M: | 30 May 1938 |
| USA | |
| D: | 1982 |
| Kevin Nowicki |
| Kevin Nowicki | |
| B: | 14 Jun 1963 |
| Danielle Nowicki |
| Danielle Nowicki | |
| B: | 3 Jun 1967 |
| M: | 2 Nov 1996 |
| Amy Collier (maid. name Nowicki) | |
| B: | 10 Nov 1964 |
| Scott Collier |
| Scott Collier | |
| B: | 11 Jun 1963 |
| M: | 19 Jan 1991 |
| Don Nowicki |
| Don Nowicki | |
| B: | 10 Mar 1935 |
| Gerri Nowicki (maid. name Reczkowski) | |
| B: | 9 May 1939 |
| M: | 16 Sep 1961 |
| Stacy DeLong |
| Stacy DeLong | |
| B: | 18 Jan 1974 |
| Monroville, PA | |
| Jeo Delong |
| Jeo Delong | |
| B: | Yes, date unknown |
| M: | 6 Jul 1999 |
| Jennifer House (maid. name Nowicki) | |
| B: | 7 Dec 1976 |
| Monroville, PA | |
| NN House |
| NN House | |
| B: | Yes, date unknown |
| M: | 2 Jul 2002 |
| Leonard R. Nowicki |
| Leonard R. Nowicki | |
| B: | 15 May 1940 |
| Jill Nowicki (maid. name Gercken) | |
| B: | 27 May 1945 |
| M: | 8 Jun 1968 |
| Don J. Lamparski |
| Don J. Lamparski | |
| B: | 21 May 1971 |
| Alysia Lamparski |
| Alysia Lamparski | |
| B: | 26 Jun 1973 |
| M: | 17 Jul 1993 |
| Heather Johnson (maid. name Lamparski) | |
| B: | 25 Apr 1974 |
| Todd Johnson |
| Todd Johnson | |
| B: | 14 Jun 1976 |
| M: | 9 Sep 2005 |
| Adele Lamparski (maid. name Nowicki) | |
| B: | 18 Dec 1946 |
| Don Lamparski |
| Don Lamparski | |
| B: | 10 Jul 1945 |
| M: | 13 Jun 1970 |
| Helena Nowicki (maid. name Kostewicz) |
| Helena Nowicki (maid. name Kostewicz) | |
| B: | 16 Feb 1912 |
| East Vandergrift, PA | |
| D: | 14 Jun 1985 |
| Natrona Heights, Allegheny, Pennsylvania | |
| Leonard A. Nowicki |
| Leonard A. Nowicki | |
| B: | 11 Aug 1912 |
| M: | 15 May 1934 |
| D: | 20 Apr 1978 |
| Judith Beresik (maid. name Kostewicz) |
| Judith Beresik (maid. name Kostewicz) | |
| B: | Yes, date unknown |
| NN Beresik |
| NN Beresik | |
| B: | Yes, date unknown |
| M: | Yes, date unknown |
| Douglas Kostewicz |
| Douglas Kostewicz | |
| B: | Yes, date unknown |
| Eugene Kostewicz |
| Eugene Kostewicz | |
| B: | 9 Jan 1942 |
| D: | 06 Jul 2008 |
| USA | |
| Sheila Kostewicz |
| Sheila Kostewicz | |
| B: | Yes, date unknown |
| Mary Beth Kostewicz |
| Mary Beth Kostewicz | |
| B: | Yes, date unknown |
| Thaddeus Kostewicz |
| Thaddeus Kostewicz | |
| B: | Yes, date unknown |
| Aleksander Alex Kostewicz |
| 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 |
| Stefan Stephen Kostewicz | |
| B: | 29 Sep 1921 |
| D: | 28 Dec 2001 |
| Seabrook, Cumberland, New Jersey | |
| Helen Kostewicz |
| Helen Kostewicz | |
| B: | Yes, date unknown |
|
| Waleria Kostewicz (maid. name Korycka) |
| Waleria Kostewicz (maid. name Korycka) | |
| B: | 08 Sep 1882 |
| Psucin, nowodworski | |
| D: | 12 Dec 1955 |
| PA, USA | |
| Władysław "Walter" Kostewicz |
| Władysław "Walter" Kostewicz | |
| B: | 04 Nov 1874 |
| Wola Smolana | |
| M: | 07 Oct 1900 |
| Nasielsk, nowodworski, mazowieckie, Polska | |
| D: | 12 May 1955 |
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.