William Ryan Obituary
On October 11th, 2025 Bill and Cheryl celebrated their 39th wedding anniversary. Bill was a man of immense passions: he was an avid reader with a wealth of knowledge, a dedicated fan of the Notre Dame Fighting Irish, Chicago sports, and true connoisseur of rock and roll, with The Kinks and The Rolling Stones filling his extensive album collection. Yet the greatest passion and joy of his life was his family. Bill was a very loved man, and his memory will be cherished forever by his wife, Cheryl, and their devoted children, Billy and Kate whom Bill ensured were raised with love and imparted many life lessons.
Bill was preceded in death by his Mother, Jane Donovan Ryan and his Father, William Ryan.
Bill is survived by his beloved wife Cheryl Ryan, nee Huizinga; loving father of Bill (Lucy) Ryan, and Kate (Sam) DeTrempe; dear brother of Kathleen (John) Waite, Eileen (Hugh) Spector, Maureen (Bob) Pangrazio and Madonna Ryan (the late Dan) Martin; dearest brother in-law of Daniel (Sue) Huizinga; fond uncle and great uncle "UB" of many.
Memorial Visitation Friday, December 12th, 3:00 PM to 8:00 PM at Sullivan Funeral Home, 60 South Grant Street, Hinsdale, IL. Funeral Saturday, December 13th, Memorial Visitation 10:00 AM until time of Funeral Mass 11:00 AM at Notre Dame Church, 64 Norfolk Avenue, Clarendon Hills, IL. Interment Private. In lieu of flowers, memorials to American Lung Association, www.lung.org or PAWS Chicago, www.pawschicago.org are appreciated. 630-323-0275 or www.sullivanfuneralhomehinsdale.com
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Phil Schuetzner
December 31, 2025
Cheryl, so sorry about Billy´s passing - just heard about it. I was lucky enough to know both of you. I know we weren´t in touch, but I still thought about him when I heard a Stones song. He was a good friend, snd he will be missed. I hope you and the kids are doing ok. Schootz.
Colleen Dowd Kollman
December 14, 2025
Bill was just the sweetest, kindest, most loving man. I am with all of you in spirit and sending love and prayers to Cheryl and all the family. I am sad I couldn't be with all of you this weekend. May he rest in peace.
Cousin Colleen
Alan Grigoletto
December 10, 2025
I´m very sorry to hear of Bill´s passing. I was fortunate to have to worked with Bill at the OCC. He was a dedicated and knowledgeable teacher of options, our industry and a respected
colleague.
Eric C
December 9, 2025
I was blessed to have the opportunity to know and work alongside Bill. A terrific mentor and wonderful individual
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David Prosperi
December 9, 2025
I had the good fortune to work with Bill at the Options Clearing Corporation and the Options Industry Council. I enjoyed our conversations about family and sports, and he was very patient in explaining to me the intricacies of the options markets. May his memory be an eternal blessing to his family and friends.
Jennifer Warkenthien
December 9, 2025
Cheryl, I am heartbroken to hear of Bill's passing. My heart goes out to you, Billy and Kate.
Bill was a such great guy and I am glad to have known him. Even though we all didn't get to see each other much (since our bowling league days), it was always a pleasure to run into Bill on my way up Madison to the train station to get caught up with what our kids were up to, etc.
Bill, may we meet again someday at a bowling alley in the sky! In the meantime . . . you know the rule: Don't Practice!
Love, Jen
Mark Benzaquen
December 9, 2025
I worked closely with Bill for several years at OCC. Here's what I'll always remember about him:
1. He had a very deliberate way of speaking and would often "cogitate" on something for long periods before answering. To this day, "cogitate" is one of my favorite words.
2. He often spoke in air quotes, even when on the phone. Still brings a smile to my face.
3. If you wanted to get him out on the dance floor, simply queue up ABBA's "Dancing Queen" and watch him go to work.
4. He was nearly fanatical about his love for The Kinks.
5. He was the nicest and kindest man that I ever met and will be sorely missed by those that love him.
Chris Stefano (SJC '80)
December 9, 2025
Cheryl and family, I'm so very sorry for your loss. May Bill's memory be a blessing.
From the Staff of Sullivan Funeral Home
December 9, 2025
Offering our deepest condolences during this difficult time.
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