Nancy A. Semenek Rader (nee Heiden) of Oswego and former long-time resident of Downers Grove, passed away on March 21 with her family by her side. Beloved wife of Kurt H. Rader. Loving mother of Carol (Lawrence) Lucas, Susan (Marcel) Schwartz and Michael (Heidi) Semenek. Fond grandmother of Scott, Amanda and Rachael Semenek, Nathan and Simeon Lucas, and Kyle Meyer. Sister-in-law of Werner (Rose) Rader and Helen Conrad. Step-mother of Kevin (Lynn) Rader and Kent (Ashley) Rader. Step-grandmother of Emma, Aiden, Isabelle, Jackson, Lila, and Colten. Nancy is preceded in death by her father, William Heiden, mother Ann Frintner and brother William Heiden, Jr. Memorials appreciated to St. Jude Children’s Research Hospital, www.stjude.org. Family services and interment will be private.