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BANNON: Julia ‘Marie’ (Costello) of Strathroy
Posted By Haskett Funeral Homes On June 16, 2026 @ 3:42 PM In Lucan, Obituary | 60 Comments
With her family by her side at Sprucedale Care Centre, Strathroy, Marie passed away peacefully on Monday, June 15, 2026 in her 91st year. Beloved wife of the late Jack Bannon (2017). Loving mother of Colleen and John Zrini, Murray Bannon and Kelli Cartwright, Paul Bannon and Karen McNeill Bannon, Laurie Bannon and Art Gregory, Lisa and John Hedley, and Mark Bannon and Jennifer Meyer. Beloved Grandmother and Nana of Shanna (Wyatt), Reanne (Chris); Matthew (Jessica), Patrick, Joseph, Jack (Annalea); Max (Nicole), Greg (Samantha); Jamie (Stefanie), Julia (Nick); Jordan (Sara), Lukas (Josée); Jacob, and Evan and three precious great-grandchildren Clara, Harrison; and Nora. Dear sister-in-law of Sharon Bannon and Sandra Bannon. Predeceased by her parents John and Mary (Jordan) Costello and her 10 cherished siblings.
Proudly born and raised on the family farm near Kennicott, Ontario, Marie spent her youth learning domestic responsibilities from her mother and enlivening the home with music she so beautifully played on the family piano. Although Marie held many titles throughout her life, including administrator, family historian, and trusted confidant, her greatest role was being the matriarch of her family. Her biggest joy was spending time with the people she loved most. She was the heart of her family, bringing everyone together with her love, kindness, and support. It is comforting to know that she is reunited with her one true love, Jack.
Many thanks to the Sprucedale Care Centre’s outstanding staff who cared so deeply for our mother.
Visitation will be held at the Haskett Funeral Home, 223 Main Street, LUCAN on Friday from 6-9 PM. Visitation will also be held one hour prior to the 11 AM Funeral Mass at St. Andrew the Apostle Parish Catholic Church, 1 Fallons Lane, LONDON on Saturday, June 20th. Private family interment Pinery Cemetery, Grand Bend at a later date.
A recording of Marie’s Funeral Mass will be available on Sunday by visiting www.facebook.com/haskettfh.
Donations to the Alzheimer Society of Canada or Big Brothers Big Sisters of London and Area would be appreciated by the family.
Dear Bannon Clan. You have our deepest sympathy. Your mom was the kindest woman. May your family continue to be a close family in honour of both your mom and dad.
Love always, Dennis and Barbara Courtis
Paul, Karen and family:
So sorry for your loss – clearly your mother was a very special person – lots of good memories to hold on to
My deepest sympathies to the Bannon family and to all who were touched by my Aunt Marie. A brilliant light has gone out.
My condolences to you all. Marie was a wonderful woman with a kind heart and a big smile. Her greatest legacy lives on in the beautiful family she and Jack built and loved ❤️
Always cheerful and welcoming. I spent many hours as a teenager at their home in London.
No one could top her wit.
Loved her and Jack
Rosemary Boyd
Paul Jaren Lisa and John gre and max sending heartfelt condolences on the passing of your mom and grandma. May her memory guide you through this difficult lose May she soar high back with her loving husband
My Aunt Marie was a special person. Growing up I always felt that she cared about me and her smile and kindness always warmed my heart.
My condolences and sympathy goes out to the whole Bannon family as I know she will be deeply missed.
So sorry for your loss. Our deepest condolences to your family
Colleen, Lisa, Laurie, Murray, Paul, Mark and your families,
I was so saddened to hear of Aunt Marie’s passing. My heartfelt condolences go out to all of you during this difficult time.
I have such wonderful memories of spending summers together at the cottages in Grand Bend, every summer, when we were young. Those days were filled with laughter, family, and happy times that I’ll always cherish. Aunt Marie was a big part of those special memories.
I hope that, in time, the many wonderful memories you have of your mom will bring you comfort and peace. Please know that you are all in my thoughts and prayers.
With love and deepest sympathy,
Wendy & John McCaffrey
So very sorry to hear of dear Aunt Marie’s passing. Have alot of wonderful memories of Aunt Marie Always enjoyed our visits with her. She had such great stories to tell and was such a warm loving person. Her love and pride for her family was always evident in every story she told. Thinking of you all and sending love and prayers. Hoping you find peace in all your wonderful memories of her She truly was a gift.
Love Trina , Aunt Sharon and Family
Lisa, John and families;
So sorry for your loss. Thinking of you at this sad time.
I am so sorry to learn of Marie’s passing. Our hearts go out to the Bannon family. Your Mother, (our aunt) was warm, kind, generous, and fun to be around. I cherish all the fond memories spending time with your family and your wonderful parents.
We are thinking of you at this difficult time and send our deepest condolences.
Charlie & Kathy Meek
Paul, Lisa, Laurie and families, our sincerely condolence to your family. May you carry all those great memories of your mom.and sorry for your loss.
Our sincere condolences Colleen and John and family on the passing of your Mother
Paul, Lisa, Laurie, and the rest of the Bannon clan: we’re so sorry for the loss of your mother, grandmother, and great-grandmother. She seemed to be the centre of your worlds and I hope that your memories of her and your dad help you through the next several days.
To my cousins and your families, I send my deepest condolences as you feel the loss of dear Aunt Marie. I share a
special appreciation for my Godmother Marie for showing kindness in providing me a warm welcome into your family and home for extended visits in the summers. Times I remember with a happy heart. I am so sorry for your loss and I wish you all peace and love.
To the Bannon Family
Sorry to hear of your Mom’s passing but what a full life.Your Mom and Dad were are super nice couple
Lisa, John and families,
So sorry for your loss. Our thoughts are with you at this very difficult time.
John, Lisa and the Bannon family, sorry for your loss. Thinking of you and your family during this time.
My condolences to all the Bannon family..All those loving memories of your mom will keep her close to you everyday Thinking of you all💕
My deepest condolences to you and your family. I didn’t have the privilege of knowing your mother, but I know how much you will miss her. My prayers and thoughts are with you during this difficult time.
My heartfelt condolences: I hope you find comfort in the love surrounding you. May her memory be a blessing.
To the Bannon family our deepest sympathy in the passing of Marie.She was a friend and pleasure to be with .She is now with the love of her life Jack.
I guess I was probably about five years old, when I remember Aunt Marie. I thought she was the prettiest lady,and she was sooo nice.
As the youngest of the Costello family, I’m sure that the entire nuclear family,and Jack, are rejoicing in Heaven, because they are all together!
I never knew Marie very well but I know her daughter Colleen and I can tell that Colleen is very much like her mother who whenever I saw her was very happy to see a person smiled always had something interesting to say and chose to look at the bright side of life.
You could say she was a good role model for anybody who met her.
My condolences to all of the family.
Dear Mark,Jenn and family..so sorry to hear of the loss of your mom…take comfort in friends and family during these difficult times
Dear Bannon Family,
We are saddened to hear of the passing of your wonderful Mom.
Loving memories will keep her in your hearts forever.
To the Bannon family
Sending our condolences to everyone in the loss of your dear mother, grandma – Marie.
Wishing you all peace and comfort in the days ahead.
To all the Bannon family, my sincere condolences. It was at St. Andrew the Apostle church that I met Marie and Jack. Time passed and then I met up with Marie at The Mount a few months ago, as my neighbour. May you rest in peace.
My heartfelt condolences to the Bannon family.
So many wonderful memories to share of your magnificent matriarch.
Marie’s children reflect her steadfast commitment to integrity and family.
To the dearest friends, the Bannon family – those we love don’t go astray, they walk beside us every day. Unseen, unheard, still missed, still loved and very dear.
Colleen, Murray, Paul, Laurie, Lisa, Mark and families. My condolences to you all for the loss of your Mom, relative or friend.
My experience with your Mom, was one of kindness, compassion and an open mind. I especially enjoyed our more intimate times in later years while living in Grand Bend.
Rest in Peace Aunt Marie.
Please accept our heartfelt condolences to the Bannon families keep her memories close to your heart.
To the entire Bannon Family,
We would like to offer our condolences on the passing of your Mom. Remembering the good old days being welcomed into Jack and Marie’s home with open arms. Marie was such a kind hearted person with a smile for all.
RIP
Marie enjoyed a happy life because of the devotion and love of her husband, children and surrounding family.
I share with you all my deepest sympathies.
Our sincere condolences on your loss.
My sincere heartfelt condolences to all of the family of Marie. She left a wonderful legacy of kind, compassionate, giving children.
I know she will be missed by many.
Our sincere sympathy to all Marie’s loved ones. We have fond memories of both Marie and Jack from the Jr. D days.
To the Bannon Family:
Very sorry to hear of the passing of your Mom. Both she and your Dad were very kind to us when a very young family purchased your home on Valleyview Ave. London in 1978. They had come to see the home that we were selling to make sure that we would be a good addition to the neighbourhood – thankfully we passed the test! I remember visiting your busy home and hoping that they would sell it to us. We made good friends there and still keep in touch with their special neighbour (Leona Taylor). I am going to call her in Kelowna and we will enjoy memories together.
We wish you to offer our sincere condolences to all the family members of the Bannon family. I remember her to be very kind hearted ,and always with a welcoming smile. Our thoughts are with all of you.
Lisa and John and families
Sorry to hear of your mom’s passing. You have our deepest sympathy. Cherish your memories.
To my cousins and extended families. I was so sad to hear of Aunt Marie’s passing. She was always such a warm and loving lady. I have many fond memories of sleepovers at the family home in London. I loved Aunt Marie’s cooking!
Thinking of all of you at this time with love.
Sending our sincere condolences to your entire family during this difficult time.
Sending our condolences to the entire Bannon family.
To the Bannon Family.
My sincere condolences in the passing of your Mom, Marie.
She was always so kind and friendly, I met Marie when she volunteered for L,E.O. {Lambton Elderly in Outreach} in Grand Bend many moons again.
She will be missed.
Mark & Jenn and the entire Bannon Family,
Sorry to hear of the passing of your mom. Condolences from the Bogart’s
Scott, Lynda, Luke & Heath
We offer our condolences to the Bannon and Costello families. “Julia” as we knew her here at Sprucedale seemed to be sent by God as she was a wonderful friend and companion to Mary F and a reminder of our mutual upbringing in the Mitchell area. We enjoyed sharing the ‘Advocate’ and stories of home. We are so thankful of her time here. We will miss her. Mary F. and Nola Dow
Dear Bannon Family:
Sending heartfelt condolences to your family for the loss of your amazing Mom. So many great memories I had growing up with your family.
Thinking of you all with sincere condolences. She was a wonderful person. ♥️
Erika and Mike Power are very sorry for your loss. Stories of Marie retold by Paul and Karen over the years were always impressive and heartwarming. Rest in peace.
Dear Cousins:
We are sorry to hear of your Mom’s passing. I will always remember her beautiful bright smile. I can see her in every one of you. Our thoughts are with you today and in the months ahead .
the Mulhollands
To Marie’s family,
We were so blessed to meet Marie a few years ago when she dropped by our farm to see the Costello homestead, where she grew up. I gave her a pickle dish that someone in the family had given to us years ago which had belonged to her mother–we thought it should stay in the family. She was deeply touched and grateful. Our condolences and prayers are with all of you. Marie, may your soul rest in the loving arms of God.
John & Wilma Kolkman
Dear Colleen and John, Lisa and John and families:
Bill and I are so sorry to learn of the loss of your Mother/ Mother in law. We are thinking of you at this difficult time .
Bill and Paula
A true beauty, in every sense of the word.
She led a wonderful life, and raised a great family.
May she rest in peace with her beloved Chack for eternity.
She will be missed.
Remember her with a smile.
Jo-An
Murray, Kelli and the Bannon family,
The love of a wonderful mother is something that always lives on. May time ease the sorrow you feel and leave only loving memories.
Our sincere condolences to you and your family,
Brian and Cheryl Fenlon
Oh Marie! Wishing you peace and a wonderful reunion with Jack!
To the family, my sincerest sympathies. Marie was a peach and I know you will miss her deeply.
Holding you in my heart as you navigate the new path with her as a strong and loving memory.
E xo
Murray and family, so sorry at the loss of your dear mother. Our family is thinking of you, and wish you all peace and solace in her memory.
Murray, Kelli, the boys & all the Bannon’s,
I’ll never forget Mae’s warmth, laughter and wonderful hugs. Your mother always made everyone feel welcome, and that’s truly a great gift. I’m grateful for having known her, and grateful that she brought such wonderful people into this world :)
You’re all in my thoughts & prayers,
Love Cathy
We are so sorry for your loss and are sending love and hugs to the whole Bannon family during this difficult time.
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To the Bannon family , I am sorry for your loss. 91 years is a beautiful span. My regards to you all