William E. Kleiser, 86, of Henderson, NV, passed away on December 26, 2025 at the Trellis Paradise skilled nursing facility in Las Vegas, NV.
William was born in Chicago, IL to Ernest C. and Madeline (nee Adams) Kleiser on March 9, 1939.
William attended Proviso High School in Hillside, IL. He worked for many years at Merrill Lynch in Chicago’s Board of Trade building. He was a member of the Des Plaines, IL Benevolent and Protective Order of Elks. He volunteered at Harry Reid International Airport. He also volunteered as McGruff.
He is preceded in death by his parents and wives Hope, Donna and Sheila and son William Jr.
He is survived by sons Steven and David and daughter Valerie.
Arrangements are by Las Vegas Cremations.
To plant trees in memory, please visit the Sympathy Store.

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