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Diane passed away after a long fight on Monday August 25, 2025. She was 60 years old.
Diane is survived by her husband Michael Onesto; daughter Stephanie Fleming (Nathan); and her three beautiful grandchildren Jake, Jordyn, and Hannah.
She will also be missed by her brothers Gary Sande, Al Sande (Val), Dale Sande (Angie), Doug Sande, and Edwin Sande (Sheila). Her in-laws Harvey and Shirley Onesto; and sisters-in-law Kim McClaflin (Miles) and Patti Wynnychuk (John); as well as many nieces, nephews, relatives, and friends.
Diane was predeceased by her parents Elizabeth and Aldred Sande; and her sister-in-law Kristi Onesto.
A private service will be held at a later date.
Memorial Donations in Diane’s name are gratefully accepted to FCSS of Ponoka.
To send flowers to the family or plant a tree in memory of Diane Lynn (Sande) Onesto, please visit our floral store.