Glenda is survived by her son Michael Markus and his wife Maritza; son Robert Markus and his wife Tricia; her sister-in-law Roslyn Siegel; and seven grandchildren: Brian Markus, Alexander Markus, Joshua Markus, Kelly Markus, Christina Markus, Zachary Unger, and Jeremy Unger.
Glenda was predeceased by her husband Thomas Markus; brother Kenneth Siegel; and parents Abraham and Rose Siegel.
A graveside service will be held on Tuesday, May 26, 2026 at 11:00 am at Mount Sinai Cemetery, 374 State Route 79, Marlboro, New Jersey 07751.
In lieu of flowers, donations in Glenda’s memory may be made to the American Heart Association (www.heart.org) or the American Diabetes Association (www.diabetes.org).
