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Yvonne Costello Obituary
Yvonne Rosalie
(Borisch ) Costello
January 30, 1938
September 2, 2022
Yvonne Rosalie Borisch Costello, 84, of Denver, CO lost her second battle with cancer on September 2, 2022. Yvonne was born January 30, 1938, in Wauwatosa, WI, the daughter of Clarence Borish and Rosalie Robar. She graduated from Mount Mary College in 1960, where she was affectionately known as "Bo". Yvonne embraced her love of travel and worked as a teacher in California before moving to Colorado to complete her master's work at DU and continue teaching.
Yvonne engaged in volunteer work with Most Precious Blood Parish, Junior Great Books, the Marthas, the MPB Social Society, with The Society of St Vincent de Paul MPB and many other organizations. Yvonne returned to teaching and taught for many years at Our Lady of Lourdes Catholic School. After her retirement, Yvonne increased her volunteer work and touched many lives. She enjoyed reading, spending time with friends, going to the theater, and being active. She spent time biking, hiking, playing tennis, and skiing. In recent years she took up pickleball.
Yvonne is survived by her brother, Doug Borisch (Rick,) Omaha, NE and her three children Virginia Brown (Scott), Louisville, CO; James Costello (Lisa) Parkville, MO; and Trish Iannacito (Mark), Fort Collins, CO. She is also survived by her beloved grandchildren: Michael, Matthew, Zoie, Mitchell, Liam, and Nyx. Yvonne was preceded in death by both parents and her older brother, Clint.
The Rosary/Vigil is on Wednesday, 9/14 at 6:30 at Most Precious Blood Catholic Church (MPB,) 2200 S Harrison St, Denver, 80210. The Funeral Mass is at 10am on Thursday, 9/15/22 with the reception to follow in the St. Steven's Parish Hall. The internment is at 2:30pm at Mt Olivet Cemetery in Wheat Ridge, CO that same day.
In lieu of flowers, please donate to the American Cancer Society or The Society of St Vincent de Paul MPB. (Send checks to 3959 E Iliff Ave, Denver, CO 80210)
To plant trees in memory, please visit the Sympathy Store.
Memories and Condolences
for Yvonne Costello
Sponsored by Horan & McConaty Funeral Service & Cremation - South Denver.
Mandy Ash
January 16, 2025
Mrs. Costello was my eighth grade teacher at Our Lady of Lourdes she was an amazing teacher and left a great impression on me. she taught me so much. she will be missed
Eryn McGarry
July 17, 2023
Mrs. Costello was my 6th-8th grade teacher at Our Lady of Lourdes. I'm 32 now and still hold on to a lot of the things she taught us. My love of reading, proficiency in writing, disdain of the word "irregardless" & to always say "you're welcome" instead of "no problem" are just a few examples. She was an incredible teacher, and left a lasting impression on her students. Sending all the condolences to her family.
Linda L Wagoner
September 21, 2022
Linda Wagoner
September 18, 2022
My deepest sympathy to her children and their families at this sad time. I did Yvonne's hair for many years, and she became a good friend, she was a wonderful lady. She will be truly missed.
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Maggie Brown
September 13, 2022
Yvonne lived a life of fun, joy and finally pain, surviving cancer and all it´s treatments for several years. May her family enjoy the promise of our Lord that upon her death, she is at peace with Jesus experiencing no more pain or tears for eternity. What hope this gives all those who have a personal relationship with our Lord. May God hold all her descendants in the palm of His hand and give you peace.
Maggie Brown
September 13, 2022
The beautiful intelligent and kind mother of our daughter in law, Virginia will be missed by so many family and friends , but in Heaven she is rejoicing as promised with no more tears or pain. May her living descendants be comforted in knowing how she prepared and lived every day for this final test and peace in the arms of Jesus.
Heather Burkin
September 12, 2022
Yvonne was a beautiful woman who raised such amazing children! Sending love and strength to all of you.
Kathleen Cronan
September 12, 2022
I saw Yvonne so often at MPB at 4:30 Mass -- and so enjoyed visiting with her. She was also very helpful when EarthLinks would have a sale at the church. She will be missed. A wonderful, smart and witty lady. Wishing you peace in these days.
Julie Matern
September 11, 2022
Trish, my deepest condolences to you. You are such a kind, loving and joyful woman, and although I never had the pleasure of meeting your mother, I suspect the apple didn´t fall far from the tree. Love and light to you and your entire family.
Lida Jones
September 11, 2022
Virginia,I am so sorry your Mother lost her battle with cancer. I am thinking about you and your family as you celebrate her life and morn her lossLida Jones
Mary Frances & Bill Jaster
September 9, 2022
We wanted you to know how much we loved your mom. She was very active on the Heart & Soul committee for CVV for many many years. We always looked forward to seeing her. Love and prayers for you all!
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