Mary L. Szejnrok (nee Doren) 90, of Hackensack passed away on Saturday, May 15, 2021. Born in Jersey City to the late Michael and Mary Doren. Beloved wife of the late Theodore Szejnrok. Devoted mother of Theodore "Ted" A. Szejnrok and his wife Loreen, Carolyn Szejnrok and Gary Szejnrok. Dear sister of William Ziemkiewicz. Loving grandmother of ten grandchildren and seven great grandchildren. Funeral Liturgy from Corpus Christi R.C. Church Hasbrouck Heights on Wednesday, May 19th at 12 Noon. Entombment following at Holy Cross Chapel Mausoleum, North Arlington. Visitation Wednesday 10:30-11:30 AM at Costa Memorial Home Boulevard and Central Ave. Hasbrouck Heights. Please omit flowers, memorial contributions to St. Jude Children's Research Hospital 501 St. Jude Pl. Memphis, TN. 38105 would be appreciated.