Robbie Lynne Brack

Robbie (Mayberry) Brack, age 76, of Duncan, Oklahoma, passed away peacefully on January 24, 2026, surrounded by family, following a lengthy illness that she battled courageously.
Robbie was born in Duncan, Oklahoma, to Floyd L. Mayberry and Carmen (Keller) Mayberry. She attended Duncan Public Schools, where she graduated before going on to attend the University of Science and Arts of Oklahoma.
Robbie was a devoted wife, mother, grandmother, and great-grandmother whose life was defined by unwavering love for her family and a deep, steadfast faith. She was truly her family's greatest fan and fiercest ally-always encouraging, always proud, and never hesitant to stand up for those she loved (even when they may have been in the wrong).
Her greatest accomplishment was her family. She found immense joy in supporting her children, grandchildren, and great-grandchildren in all their pursuits, especially extracurricular and sporting activities. She could almost always be found cheering from the stands or following along closely, sharing in every success and milestone.
Robbie was deeply committed to her faith and her church family at Good Shepherd Lutheran Church, where she was a dedicated and active member. She was often the first to volunteer, helping plan, coordinate, and work the church's annual bratwurst dinner fundraiser-an event that became a beloved tradition throughout the community-as well as potluck dinners, Vacation Bible School, and countless other activities in support of the church's mission. Her faith was not only something she believed, but something she lived every day.
Creatively gifted, Robbie was wildly talented and especially loved painting with oils. Through her art, she shared both her creativity and the beauty she saw in the world around her. Her love for the arts was a special bond she shared with her mother, Carmen. Another bond they shared was their love of the card game Canasta. Robbie was always looking to recruit a team of four, and it was through this game that she became especially close to her cousin's wife, Barbie Keller, who became the sister Robbie never had.
Outside of her devotion to family, church, the arts, and her love of Canasta, Robbie was an avid sports fan. She faithfully followed and supported the Oklahoma City Thunder and Oklahoma State University athletics, enjoying every season and every game.
She is survived by her loving husband, James Brack; her children Shannon Brand (Johanna), Dustin Brand (Steve Thompson), Tyler Brack (Sarah), and Tayler Moore (Dustin); her grandchildren Shea-Ann Brand, Sylvie Case (Caleb), Cash Moore, Chandler Moore, Cooper Brack, Gracie Garand, Heather Hensley (Ryan), Bobby Humphrey, and Savannah Ortiz (Phillip); and her brother Ronnie Mayberry (Icy).
She was preceded in death by her parents, Floyd and Carmen Mayberry, and her in-laws, Wilbur and Marie Brack.
A Celebration of Life will be held Friday, January 30, 2026, at 10:00 a.m. at Good Shepherd Lutheran Church, located at 2401 Country Club Road, Duncan, Oklahoma 73533, followed by a graveside service at Resthaven Memorial Gardens under the direction of Whitt Funeral Home.
Robbie's wicked sense of humor and joy for life will be deeply missed, lovingly remembered, and forever cherished by all who knew her.

In lieu of flowers please consider a donation to Good Shepherd Lutheran Church or to the American Diabetes Association.

Online condolences can be made at www.whittfh.com.