Marianne B. Cahill
It is with deep sorrow and much love that we mourn the passing of Marianne B. Cahill, of Newark, DE, on Friday, August 7, 2026, at the age of 84 years.
Born in Port Herman, Maryland, she was the daughter of the late Robert and Mary Ann (Coyle) Biddle, Jr. Marianne graduated from St. Elizabeth’s High School and then became a registered nurse at the St. Francis Hospital School of Nursing in 1962.
She later completed her Bachelor of Science in Nursing at University of San Francisco in 1967. She earned a Master of Science Degree in Nursing from University of California Medical Center and achieved her Clinical Specialist Certification for Psychiatric Mental Health Nursing in 1977. She worked as a nurse at Manhattan VA Hospital in New York and Mt. Zion Hospital in California.
She enjoyed teaching nursing students at the University of Delaware from 1969-1977. Marianne also counseled individuals and couples in her private psychotherapy practice for over 30 years.
Marianne loved spending her birthdays at the ocean with her husband Ron, sailing on her sailboat, yoga, gardening, and traveling.
She was a devout member of Holy Family R.C. Church and found great joy in spending time with family and friends. Her kindness and love were gifts to everyone who knew her.
In addition to her parents, she was preceded in death by her sister, Dorothy Veasey, and brothers, Robert Biddle III and Patrick Biddle. Marianne is survived by her husband of 15 years, Ronald G. Cahill; daughter, April Biddle (Robert Darrow); sister, Nan Furness; and sister-in-law, Jeanette Biddle, and a host of nieces, nephews and extended family.
A visitation for family and friends will be held from 10:30 a.m. until 11:30 a.m. on Friday, August 14, 2026, at Holy Family R.C. Church, 15 Gender Road, Newark, DE 19713, where a Mass of Christian Burial will be offered at 11:30 a.m. Interment will follow in All Saints Cemetery, 6001 Kirkwood Highway, Wilmington, DE.
In lieu of flowers, donations may be made in Marianne’s memory to the American Heart Association, P.O. Box 840692, Dallas, TX 75284-0692 or online by clicking here, or to the American Cancer Society, P.O. Box 6704, Hagerstown, MD 21741 or online by clicking here.

Maryame Hissou
My dearest Marianne, losing you leaves an emptiness in my heart that can never be filled. Caring for you and sharing our lives together was one of the greatest privileges of my life. I loved you so much, and your memory will stay with me always. Rest in peace.”
Randye Gravitz
To Ron Cahill & April, extended family…. had the pleasure to meet & get to know Marianne. She had a good sense of humor, and loved Reiki, yoga, good stuff. I just enjoyed reading about her nursing career, awesome! I know your time together was very special and loving. Think of her, talk with her and I do believe Marianne will always find a way to be near you. She would want that. Thinking of you at this time and sending sincere condolence and ❤️. 🙏🏻🦋
April and Po Chang
Ron and Marianne were lovely neighbors in Briarcreek. We will miss her smile and kindness. Never had the opportunity to talk to her about her impressive nursing and mental health career. Peace to Marianne and Ron.
Ray Lewis
I am so very sad to hear of Marianne’s passing. I worked with her at Upper Bay Counseling for 20 years. She shared her knowledge with me and helped me in my growth as a therapist. More importantly, she was a good and dear friend. She remains in my heart and memories.
Don Godwin
Ron we are so sorry to hear about Maryann. May God bring you comfort in these days.
Mary Pat Phelan
Marianne’s voice was a gift to Holy Family Catholic Church during our liturgies. She proclaimed each Scripture reading with articulation and reverence. It heightened my attentiveness and ability to pray with the assembly. Thank you, Marianne, for your love of God’s Word.
Carollin Smyth
April I’m so sorry for your loss. She was such a special person and I only knew her for a very short time years ago. I hope you will always have wonderful memories that flood your heart and mind. In case you don’t remember, I’m Ray’s wife. Love to you and your family.
Becky Woods
Our many condolences for your loss. Marianne was a sweet and gentle soul who was generous with her time and expertise and always made you feel supported and loved. She was irreplaceable and will be missed. You all are in our thoughts during this difficult time. Love, Becky, Ethan and Logan