Michał Zieliński and Teresa (née Dudek) met in a very interesting way while working on the railway station. They married in 1943 on Christmas Day. In 1944 their first daughter died in the second day of her life because of a congenital heart disease. Their second child, Jadwiga, was born in 1946. She joined a military unit in Jarosław. She married Wacław Spiradek.