Cover photo for Thomas R. Siebel's Obituary
Thomas R. Siebel Profile Photo
1935 Tom 2025

Thomas R. Siebel

December 14, 1935 — May 6, 2025

Thomas R. Siebel, aged 89, of Cincinnati, Ohio, passed away on May 6, 2025. Born on December 14, 1935, he led a life filled with dedication, service, and love for his family. Thomas enjoyed a long and fulfilling career as an Operator at Procter & Gamble for over 35 years, where he earned the respect and admiration of his colleagues.

Thomas was a proud alum of Roger Bacon High School, which helped shape his strong values and work ethic. He was a loving husband to Patricia "Pat" Siebel for 52 years, who predeceased him, and a devoted father and grandfather. He leaves behind a legacy of warmth and compassion through his children: Dave (Debbie) Siebel, Chris (Peggy) Siebel, Donna (Jeff) Rowe, Tommy (Kathy) Siebel, Mary Pat (Pat) Bess, Diane (Andy) Bess, and Paul (Christie) Siebel. His lineage continues with 17 grandchildren and 21 great-grandchildren, each of whom carries a piece of his spirit and teachings.

Additionally, Thomas is survived by his sister, Gail Frye, and his son-in-law, Bruce Knecht, adding to the circle of family that cherished him throughout his life.

Thomas was preceded in death by his parents, Ralph and Lillian Siebel, and his beloved daughter, Carol Knecht.

His family invites friends and community members to honor Thomas's memory during visitation on May 14, 2025, from 9:00 AM to 10:00 AM at St. Dominic Church (Gathering Space), located at 4551 Delhi Road, Cincinnati, OH 45238. Following the visitation, a Mass will be held at the same location starting at 10:00 AM and concluding at 11:00 AM.

Thomas R. Siebel will be deeply missed, remembered for his kindness, strength, and unwavering love for his family and friends. 

Memorials may be made to St. Jude Children's Research Hospital, 501 St. Jude Place, Memphis, TN 38105 or the Leukemia and Lymphoma Society, Southeast (Ohio River Valley) P.O. Box 22443 New York, New York 10087-2443

To order memorial trees or send flowers to the family in memory of Thomas R. Siebel, please visit our flower store.

Service Schedule

Upcoming Services

Visitation

Wednesday, May 14, 2025

9:00 - 10:00 am (Eastern time)

St. Dominic Church (Gathering Space)

4551 Delhi Road, Cincinnati, OH 45238

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Mass

Wednesday, May 14, 2025

Starts at 10:00 am (Eastern time)

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Interment

Wednesday, May 14, 2025

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