We are saddened to share the passing of Mark Kennedy, Sayville High School Class of 1975, who died on October 25, 2026, at the age of 69. Mark was born on April 19, 1957, and made his home in Greenlawn.

Mark was the devoted husband of Susan; the loving father of Sean, Tim, and Rory; and the cherished grandfather of Maeve and Murphy. He was the beloved brother of James, Matt, Jack, Brian, Nora, Kate, and Jessie — a big family that will feel his loss deeply, as will all who knew him.

Friends may gather for memorial visitation on Monday, November 2, from 4 to 8 PM at Brueggemann Funeral Home, 522 Larkfield Road, East Northport, with a funeral service at 7 PM at the funeral home. The full obituary is at www.bfhli.com.

The Sayville Alumni Association extends its heartfelt condolences to Susan and the entire Kennedy family. With thanks to Ginger Fox Farrell for bringing Mark’s passing to our attention.