Esther C.Kupjack (nee Christensen) 96 of Arlington Heights was born May 18, 1921 in Chicago to Peter and Laura (nee Nielsen) Christensen and passed away April 8, 2018. Esther was the beloved wife of the late John P. Kupjack; loving mother of Laura (Jonathan) Wit, Timothy J. Kupjack and the late Ann V. (Larry) Hake; dear grandmother of 6 and great grandmother of 3. A Memorial Service will be held Saturday, April 21, 2018 at 11 AM at St. Luke's Lutheran Church, 205 N. Prospect Ave., Park Ridge, IL 60068 with a visitation from 9:30 AM until the time of the service. In lieu of flowers contributions may be made to the church.