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IN LOVING MEMORY OF
Marilyn A.
Beilke
February 21, 1952 – September 11, 2025
Obituary
Marilyn Annette Beilke, age 73, passed away on Thursday, September 11, 2025, in Pierce City, Missouri. She was born on February 21, 1952, to parents Grant and Audra Sivadon.
Marilyn graduated from Sapulpa High School, went on to attend Oklahoma State University, and ultimately earned her Juris Doctorate from the University of Tulsa. Over the course of her wide-ranging career, she worked in diverse roles including at the White House, the University of Tulsa, the courtroom as a defense attorney, and at River Spirit Casino. Yet more than any professional achievement, Marilyn was most at home in her rose garden and with her family.
She was preceded in death by her parents, Grant and Audra Sivadon, and her siblings, Mark Sivadon and Marcia Causey.
She is survived by her husband, George Beilke, and her son, Marcus Tapscott.
Marilyn graduated from Sapulpa High School, went on to attend Oklahoma State University, and ultimately earned her Juris Doctorate from the University of Tulsa. Over the course of her wide-ranging career, she worked in diverse roles including at the White House, the University of Tulsa, the courtroom as a defense attorney, and at River Spirit Casino. Yet more than any professional achievement, Marilyn was most at home in her rose garden and with her family.
She was preceded in death by her parents, Grant and Audra Sivadon, and her siblings, Mark Sivadon and Marcia Causey.
She is survived by her husband, George Beilke, and her son, Marcus Tapscott.
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