Jack was the beloved husband of Florence Umansky; loving father of Gary (Mavis) Umansky, Jay Umansky, Jeffrey Umansky and the late Bobette (Peter) Jennett; proud grandfather of 8.
A memorial service will be held at Weinstein & Piser Funeral Home, located at 111 Skokie Blvd, Wilmette, IL, 60091, on February 26, 2026, at 2:00 pm.
Following the memorial service, a Shiva will take place at the funeral home from 3:00 pm to 7:00 pm on February 26, 2026.
