John Slanker Obituary

We are sad to announce that, on May 22, 2026 we had to say goodbye to John Slanker (Forest Park, Illinois). Leave a sympathy message to the family in the guestbook on this memorial page of John Slanker to show support.

He was predeceased by: his parents, Robert Slanker and Shirley Slanker; and his brother-in-law Robert Rosner. He is survived by: his siblings, Lynn Rosner, Robert R. Slanker, James Slanker (Dawn) and Thomas Slanker (Kim); his nieces and nephews, Ben, Nikki, Jenna, Lauren, Emily, Matthew, Julie and Eliza; and his great-nephew Noah.

In lieu of flowers, please donate to https://www.parkinson.org.