Mary L. Cornelius

Mary Lou Cornelius, an incredible woman of deep faith and a beloved cornerstone of her family, went home to her Lord and Savior on September 14, 2026, at the age of 88.

Born on October 1, 1937 to Pete and Mary Miller, she spent her life anchored by her devotion to God and steadfast love for her family. A long-time resident of Mission, KS, her life was defined by a quiet, resilient strength and a spirit of service that touched everyone who knew her.

In her early career, Mary worked as a secretary at Rudy Patrick Seed Company. It was there that she met the love of her life, John Cornelius. They shared a beautiful life built on unconditional love and mutual respect. Together they raised their daughters, Joan and Jenny, until John preceded her in death in 1983.

Mary found great joy in her position at Nall Avenue Baptist Church, where she served faithfully as the church secretary until her retirement. Her work at Nall Avenue Baptist Church was more than a job, it was a ministry. She served in many areas including Sunday School Director, Teacher, Youth Softball Coach, Choir, Mission work locally and in Africa. Mary had a genuine desire and gift to share her faith with others.

She is survived by her loving daughters, Joan Slawson of Kansas City, KS and Jenny Taylor (Doug) of Overland Park, KS and her stepdaughter, Susie Jenkins (Gary) of Lenexa, KS. She is also survived by her grandchildren, Elise Carol, Rachael Kellar (Tyler), Alex Taylor, Zach Taylor (Tarah), Sara Lamberto (Chris), Katie Jenkins and her precious great grandchildren, James, Isla, Will and Maggie.

There will be an informal gathering for friends and family at Johnson County Memorial Gardens Chapel on Friday, September 18, from 3:00-4:00 PM (11200 Metcalf Ave, Overland Park, KS).