Jan married Jozefa Ostrowska on 15 Nov 1840 in Mrowino, Poznan, Poland. Jozefa was born about 1820 in Pamiatkowo, Poznan, Poland. [Group Sheet] [Family Chart]

1. Anna Koralewski was born in Jul 1844 in Mrowino, Poznan, Poland; died on 31 Aug 1844 in Mrowino, Poznan, Poland.
2. Antonina Koralewski was born on 16 Apr 1846 in Mrowino, Poznan, Poland; was christened on 19 Apr 1846 in Mrowino, Poznan, Poland.
3. Jacob Koralewski was born on 22 Jun 1848 in Mrowino, Poznan, Poland; was christened on 26 Jun 1848.
4. Anton Koralewski was born on 28 May 1850 in Mrowino, Poznan, Poland; was christened on 12 Jun 1850 in Mrowino, Poznan, Poland; died on 14 Dec 1912 in Chicago, Cook, Illinois.
5. Stanislaus Koralewski was born on 26 Apr 1852 in Mrowino, Poznan, Poland; was christened on 2 May 1852 in Mrowino, Poznan, Poland.
6. Joseph Koralewski was born on 17 Mar 1854 in Mrowino, Poznan, Poland; was christened on 25 Mar 1854 in Cerekwica, Poznan, Poland.

Jakub married Franciszka Przybylanka. [Group Sheet] [Family Chart]