John Robert Sierzenski Obituary

With heavy hearts, we announce the death of John Robert Sierzenski of Wilmington, Delaware, who passed away on August 8, 2025. Leave a sympathy message to the family on the memorial page of John Robert Sierzenski to pay them a last tribute.

He was predeceased by: his parents, John J. Sierzenski and Loretta Sierzenski (Ujazdowska); his wife Patricia (Plunkett); and his brothers, Raymond and Paul.

He is survived by: his sisters-in-law, Kathleen, Sandra Sierzenski, Margie and Johnie Plunkett; and his cousins, Barbara Indiano, Barbara Klissczc and Margie Taraciewicz.

In lieu of flowers, the family suggests donations be made to St. Helena's RC Church, 602 Philadelphia Pike, Wilmington, DE 19809, which supports charities in the local area.