Warren S. O’Sullivan

April 9, 1927 - August 24, 2020 West Grove, PA | Age 93 Loving Husband, Father, Grandfather, Brother and Friend.

Warren S. O’Sullivan, age 93, a longtime Wilmington, DE resident, former New Castle County Engineer and retired US Army Lieutenant Colonel died peacefully on Monday, August 24, 2020, at his home at Jenner’s Pond.

He is survived by his loving and devoted wife of 68 years, Frances Pope O’Sullivan, his sister Isabel Blake, sons Richard and Peter, and grandsons Andrew, Christopher, Connor and Carter.

Born and raised in Narberth, PA, he attended Lower Merion HS and Drexel University before enlisting in the Army at the end of WWII. He was offered an appointment to West Point and graduated with a degree in Engineering in 1952. He married his sweetheart that same year in a military ceremony in Fran’s hometown of Wilmington, DE.

After a distinguished 20-year career as an Army Corps of Engineers Officer, which included service in Korea and two tours in Viet Nam, he settled in Wilmington, working as an engineer in the Public Works department for New Castle County. He was promoted to the position of Chief County Engineer, which he held until his retirement in 1996.

Warren and Fran moved to Jenner’s Pond in 2010. He enjoyed tennis, bridge, ballroom dancing and a busy social life with family and their many friends.

Warren was an avid supporter of the US Military Academy and Retired Military Officers Association.

A private family burial service will be held on Saturday.

To view his online tribute and to share a memory with his family, please visit www.kuzoandfoulkfh.com

Arrangements by the Foulk Funeral Home, West Grove, PA

Message from the Family

Thank you for your support during this difficult time.
Please enhance this tribute to Warren by adding your memories.


Graveside Service

Will be held privately on Saturday.


  1. Mrs. O’Sullivan: Warren hired me to be his secretary as a transfer in 1982.Before my interview, everyone told me that I didn’t want to work for Warren O’Sullivan. I interviewed. I was confident and had no fear. I was as pregnant as I could be so he knew that I would be taking maternity leave soon. I enjoyed working in Engineering with Warren and the other engineers. When I asked him many years later why he hired me he responded “I was afraid not to”. I even made him smile occasionally. He taught me many things. Peace Be With You All. Carla Richardson

    Carla Richardson | September 18, 2020 at 3:56 PM
  2. Warren was my boss, my mentor, my co-worker and my tennis partner. We worked together at New Castle County from when I first started as a Junior Engineer in 1973 up to his retirement. He defined the role of a Public Works Engineer for me. He was a tough boss who was always straightforward and fair. He did his best to keep us engineers away from sleazy politicians, developers and contractors. He was a class act.
    My only problem with Warren was when he could not place his service in the service box when he was my tennis partner. He had a terrific service when he was on, it was almost unreturnable.
    RIP, Warren.

    Saurabh Srivastava | September 7, 2020 at 6:38 PM
  3. Fran and family,
    My Dad and I were very sad to hear about Warren. You and he had lots of fun times with my parents, Mary Edith and Frank. Wishing you great memories and much love during this tough time.
    Larry Strahorn

    Larry Strahorn | August 27, 2020 at 6:54 PM
  4. We are very sorry for your loss. Our hearts and thoughts are with you during this difficult time.
    Leon Slocomb, Carol and Marko Strukelj and Family

    Carol Strukelj | August 27, 2020 at 4:24 PM
  5. Now, the Angels rejoice as an exceptional soul has finally made its way home!
    My sincere sympathy to the O’Sullivan family. I am fortunate to have known and worked with Warren.

    Ron Morris | August 27, 2020 at 12:38 PM
  6. Warren and I worked together at New Castle County in the period 1973 through 1980. I was the Asst. County Attorney representing the Department of Public Works. Thanks to a witch hunt by the Attorney General during that period, it was a wild and wooly ride. Warren taught me so much about civil engineering, and I always remember his teaching me about the “Baltimore Curve”. I loved Warren’s calm demeanor and superb intellect. He was quite a man and a tremendous public servant.

    Cathy Mulholland | August 27, 2020 at 10:21 AM
  7. Fran, you have our prayers. The four of us certainly had many happy times together – especially the cocktails and grub! We are keeping safe here at Cokesbury. Blessings, Dolly and Don

    Windsor | August 27, 2020 at 9:46 AM

Sign the Guestbook

Your email will not be published. All fields are required.
Comments are held for moderation. Please allow 24 hours for review and approval.