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1947 - 2024

BORN

1947

DIED

2024

Thomas Sean Costello Obituary

Name: Service for Thomas Sean Costello
Start: 2024-05-02T16:00:00.000Z
Location: St. David's Golf Club

Costello Thomas Sean Age 76, on April 3, 2024, of Villanova, PA, passed away suddenly from complications of a stroke at Memorial University Medical Center in Savannah, GA, surrounded by his family. He had been vacationing on Hilton Head Island. Sean was born on October 10, 1947, in Ohio to Dr. Patrick and Janet (Weber) Costello. He grew up in the Philadelphia suburbs with his brothers Patrick, Peter, and Kevin. While attending Radnor ('65) High School, Sean met Lesley Mahan, whom he married on October 3, 1970. A United States Army veteran of the Vietnam War, Sean retired from PNC Bank as Senior Vice President commercial real estate in 2014 after 25 years. Sean is survived by his wife Lesley Mahan Costello of Villanova, daughters Meg (Micah) Snead of Ardmore, PA, and Erin (Drew) Dinger of Wayne, PA, four granddaughters Maeve and Sloane Snead and Hannah and Harper Dinger, as well as his brothers Peter Costello of Pittsburgh, PA and Kevin (Kathy) Costello of Madison, WI. He was predeceased by his parents and his older brother Pat. Relatives and friends are invited to a celebration of Sean's life at St. David's Golf Club (845 Radnor Street Rd.) on Thursday, May 2, 2024, at 12:00 P.M. In lieu of flowers, the family requests donations to the newly established Margot Wallace Keith Fund. Margot was a lifelong friend of Sean and Lesley's who also recently passed away and Sean would be beyond pleased to know his memory is intertwined with hers to support children with physical and/or mental health challenges and their families. Donations can be sent to: The Margot Wallace Keith Fund, P.O. Box 525, Edgemont, PA 19028.

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Published by The Philadelphia Inquirer on Apr. 8, 2024.

Memories and Condolences
for Thomas Sean Costello

10 Entries

Bette Iacino

May 15, 2024

To the Costello family,
I'm a friend and colleague of Meg and Micah. We worked together for a number of years in Denver. I so enjoyed Meg's stories about her parents - especially her dad. Often hilarious recaps of their latest call or adventure together, her tales were always filled with enormous love and affection for a man who was clearly beloved by many. I had the pleasure of meeting Mr. and Mrs. Costello once and immediately recognized in them the generosity of spirit and joy in life that I'd come to value in Meg. I am heartbroken for your loss.
With loving regards,
BJ Iacino

Susan Campbell

Planted Trees

Susan Campbell

April 11, 2024

To Leslie, the girls, the grand kids and the entire extended Costello family - I am sending you love, prayers and strength during this incredibly sad time. I worked with Sean over 3 decades and counted on him for advice, laughs, firing me up or settling me down as a situation called for. He was always there. I will carry him in my heart as a dear and special friend, miss his larger than life personality and think of him often.

Charles and Laurie Cross

April 10, 2024

To Lesley and the family, our prayers are with you now at what must be a very difficult time for you all. We are grateful for Sean's service and share your love of our country. May Sean rest in peace.

George Comstock

April 10, 2024

Sean was a high school classmate of mine Radnor `65 was well like by all . Outstanding lineman on Radnor´s football team. Lot´s of laughs in home room every mourning. Like many of us Sean was a solid C student ( sorry Sean ).
Our Radnor class is proud of Sean´s service to our country and his outstanding business career !!

Peter

April 9, 2024

Ill miss my big brother who always looked after me.
Except when he was torturing me as the middle child when we were young.
I love you Sean

JKH

April 8, 2024

My deepest sympathy to the Costello Family for the loss of your loved one, Thomas Sean, and pray God gives you comfort, peace and strength during this difficult time. 2nd Thessalonians 2:16-17.

Bernia McGinley

April 8, 2024

I am so sorry to hear of Sean's passing. He was my son's Godfather and a colleague of mine from our days at Xerox. I have many wonderful memories of working with him, I offer my sincerest condolences to Leslie and his children and grandchildren. RIP, Sean

Paul McConnell

April 8, 2024

Great guy we had so much fun and some great work !

Robert J. Miklas, AT2AC, USN, 1963-1967.

April 8, 2024

"A Vietnam Veteran has passed away today." Thomas, you are now relieved from your post. A job well done fellow Vietnam Veteran. America thanks you for your service to our country in the defense of freedom and democracy. The final bugle has sounded and taps is about to sound ending a successful career as a nation´s defender. Farewell fellow veteran. A Navy Vietnam Veteran.

Showing 1 - 10 of 10 results

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Memorial Events
for Thomas Sean Costello

May

2

Service

12:00 p.m.

St. David's Golf Club

845 Radnor Street Rd., PA

How to support Thomas Sean's loved ones

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