Jack Minker, of Bethesda, passed away on April 9. Beloved husband of Johanna Weinstein. Former husband of the late Rita G. Minker. Devoted father of Michael (Katherine) Minker and the late Sally (the late Jason) Minker. Cherished grandfather of Roger Caruccui, Beverly and Katie Minker. Great-grandfather of Charlotte, Naomi and Olivia Minker. Stepfather of Lawrence, Charles, Steven and Kenneth Weinstein; and loving uncle, great uncle, step-grandfather and friend. Contributions may be made to the Committee of Concerned Scientists or the American Cancer Society. Arrangements by Hines-Rinaldi Funeral Home.