Kellie Brennan

December 30, 1993 ~ January 27, 2022 (age 28)


Kellie Brennan, age 28, was born December 30, 1993, in Downers Grove, Illinois, the beloved daughter of Terry and Mary (née Fultz) Brennan. She was the loving sister of Jennifer (Jonathan) Brogan and Maggie (John Duckworth) Brennan; cherished granddaughter of Charles (late Helen) Fultz and Joan (late William) Brennan; dear aunt of Benjamin, Lia, Annie, and Ellie Brogan; fond niece of David (Melanie) Fultz, Robert (Jennie) Fultz, Charlotte (Pete) Fries, Jean (late Al) Cookson, Tom (Ann) Brennan, Pat (Ken) Kimutis, and Joan (Mitch) Danklef; dear cousin and devoted friend of many. She was a daughter, granddaughter, aunt, niece, cousin, best friend, nurse, and the most incredible sister. She loved her dog, Lucy, and all of her former pets (Sunny, Jack, and Spot). Kellie won countless awards for all of the many talents she had. From music to sports, whatever Kellie put her mind to, she excelled at. She was an incredible aunt who developed an unbreakable bond with her nephew and nieces, who brought her so much joy.


Kellie loved to travel and always had an upcoming or hypothetical trip planned. She loved experiencing other cultures and connecting with people in Spanish. In college, she created fond memories when she traveled to Costa Rica and Puerto Rico.


As a child, Kellie was full of life, always teasing her older sisters and laughing. She felt so much fulfillment from making her dad—her personal coach—proud on the softball field or basketball court. She was a devoted lifetime member Girl Scout that maintained the bonds with her troop into her adulthood.


Kellie was humble, but her intelligence and hard work led her to receive the Presidential Scholars Award from College of DuPage, where she obtained her Certified Nurse Assistant certification and played softball. She went on to receive a full scholarship and attend Elmhurst College. She graduated Summa Cum Laude in May 2017 with a Bachelor of Science in Nursing and Spanish and a minor in psychology. Kellie was pursuing a Master of Nursing degree at Rush University.


Kellie worked at Rush Hospital as an RN, BSN, and Nurse Care Manager. Kellie enjoyed helping people and working from home with her mom. She previously worked at DuPage County Health in the Tuberculosis Program and began her career in health services at Brookdale Senior Living in Lisle. At that time, three of her grandparents were residents, which allowed her to deepen her relationships with them.


Kellie enjoyed Harry Potter, The Lady Gang Podcast, exercising, music, spending time with her family, hanging out with friends and red flag days at the Michigan Dunes. It was evident to everyone who knew her that she had inspiring mental and physical strength. She fought an incredibly difficult battle with her mental health. She saw the importance of mental healthcare and advocated for therapy and awareness.


 Kellie was an amazing person that changed every life she touched for the better. She will be dearly missed until we meet again. “Happiness can be found even in the darkest of times, if one only remembers to turn on the light.”


Family and friends may gather at Trinity Lutheran Church, 1101 Kimberly Way (at Rt. 53, ½ mile south of Maple Ave.), Lisle, Illinois, for Visitation on Thursday, February 3, 2022, from 10:30 a.m. until the time of the Funeral Service at 2:00 p.m.

Guests can join the Kellie W. Brennan Funeral Service remotely via Zoom using the information below:

Time: Feb 3, 2022 02:00 PM Central Time
Join Zoom Meeting
Meeting ID: 329 301 7069
Passcode: kwb123093


In lieu of flowers, memorials may be made to:


National Alliance on Mental Illness (NAMI) DuPage

115 N. County Farm Rd., Wheaton, IL 60187


Fetching Tails Foundation

PO Box 463, Itasca, IL 60143


Kellie’s family asks that you consider bringing a photo with Kellie to place on the sharing tables for all to see. Please share the memory of the photo on the back.


Please respect the Covid protocols while inside the church. You will be required to wear a face covering. Kellie’s family invites you to visit the Tribute Wall tab of this memorial to leave a message or memory or to upload a photograph.

To send flowers to the family or plant a tree in memory of Kellie Brennan, please visit our floral store.

Memorial Tree
A Memorial Tree was planted for Kellie

We are deeply sorry for your loss - the staff at New Tradition Funeral Services

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February 3, 2022

10:30 AM to 2:00 PM
Trinity Lutheran Church, Kimberly Way
1101 Kimberly Way
Lisle, IL 60532

Funeral Service
February 3, 2022

2:00 PM
Trinity Lutheran Church, Kimberly Way
1101 Kimberly Way
Lisle, IL 60532


Fetching Tails Foundation
P.O. Box 463, Itasca IL 60143

National Alliance of Mental Illness DuPage (NAMI)
115 N. County Farm Rd., Wheaton IL 60187

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