Sally Marie Cooper

Sally Marie Cooper, 93, of Olathe, Kansas, passed away peacefully of natural causes on February 6,

2026, at her home in Olathe. A devoted mother, grandmother, great-grandmother, and friend to many,

Sally will be remembered most for her humor, honesty, and boundless love for her family.

Born on January 30, 1933, in Malone, New York, Sally was the eldest of ten children born to Dennis and

Mary Mahoney. Growing up in a large and lively household shaped her generous and nurturing

spirit—traits that stayed with her throughout her life.

After graduating from St. Joseph's Academy, Malone, New York in 1949 at the age of 16, she went on

to attend Mercy School of Nursing in Watertown, New York graduating in 1952. She later earned her

BA from Webster University.

On March 29, 1958, she married Lowell Cooper, in Potsdam, New York. Together, they built a full and

happy life, raising four children over four decades of marriage before Lowell’s passing. Sally’s work

reflected her caring nature—she dedicated many years to healthcare, serving patients at hospitals

including Barnes-Jewish Hospital in St. Louis, Presbyterian Hospital of Dallas, Research Medical Center

in Kansas City and Neosho Memorial Hospital in Chanute to name a few.

A woman of faith, Sally was a member of Prince of Peace Catholic Church in Olathe, where she found

community, comfort, and purpose. Her free time was a celebration of curiosity and joy—she loved to

travel, read avidly, and complete crossword puzzles with a sharp wit and keen mind that never dulled.

Sally is survived by her children Dennis (Carrie), Kevin (Connie), Tom (Christy) and Jennifer Blais; her

siblings Anne Huntsman, Sheila Mahoney, Neil Mahoney, Patricia Schulte, and Ellen Locke; and

numerous grandchildren and great-grandchildren. She was preceded in death by her husband, Lowell;

her parents; and her siblings Mary Slack, Jane Bahouth, Penny Lynch, and John Mahoney.

Services will be held at Prince of Peace Catholic Church in Olathe, Kansas on February 20, 2026 at

10:00am. 

Kansas City Funeral Directors are in charge of arrangements.