Theresa Marie Costello
Glassboro, N.J.

Theresa Marie “Terri” Costello, of Glassboro, NJ, passed away on Aug. 5, 2025, in Voorhees, N.J.

Born on Oct. 26, 1964, in Philadelphia, Pa., Terri brought a vibrant, joyful spirit into the world — a spirit that left a lasting impression on everyone lucky enough to know her.

Terri’s birthday, Oct. 26, was a special date shared with her beloved father, Joseph Costello, and his mother, Catherine Costello — a unique bond that spanned three generations. Terri and her father shared not only a birthdate, but a deep mutual love and admiration that endured throughout her life. Joseph, a proud and well-respected member of the Ocean Pines, Maryland community, carries forward her memory with strength and grace.

A 1983 graduate of Edgewood Regional High School, Terri was a true self-starter, building and running her own successful cleaning business for many years. As a single mother of three, her entrepreneurial spirit allowed her the flexibility to raise her children with love and dedication. In more recent years, she transitioned into real estate, working first with Exit Homestead Realty in Vineland, and then with Keller Williams, where she brought her signature warmth and determination to every client interaction.

Terri was a woman of many passions. She loved her garden, her home, and the simple joy of creating beauty and comfort for those around her. Her Glassboro home of 34 years was more than a place — it was a sanctuary filled with music, laughter, and light.

She loved spending time with friends-fishing, cooking, traveling, and laughing-but her greatest joy was her family. Terri was endlessly proud of her children — Taylor Willmot, Madison Reader, and Michael “Mickey” Reader — and adored her granddaughter, Nova Ivy Haltiwanger, who brought her immense joy.

Terri was a proud, passionate Eagles fan, even if she didn’t always know all the calls. She loved a cold Blue Moon with extra oranges and found joy in the everyday-especially in the company of her beloved morkie, Toby.

She leaves behind a legacy of love and laughter. Terri is survived by her children and granddaughter; her father Joseph Costello and stepmother Mary “Mitzi”; her sister Dorothy “Dottie” DeMarco (Michael) of Marlboro, N.Y., and their children, Megan and Michael; and her brother Joey “Bung” Costello (Melinda) of Temecula, Calif. She was predeceased by her mother, Dorothy “Dee” (née Stonis) Costello.

Relatives and friends are invited to a viewing on Sunday, Aug. 17, 2025, from 4 to 6 p.m. at the Barclay Funeral Home, 208 Maple Street, Clayton, N.J. 08312. A funeral service will follow at 6 p.m. Interment will be private at the convenience of the family.

Terri’s memory lives on in the many lives she touched and in the laughter, warmth, and fierce love she gave so freely.