Bonnie L. (Seager) Bialcak, 84, of York Township, passed away peacefully at her residence on Saturday, October 10, 2026, surrounded by her loving family. She was the beloved wife of James A. Bialcak, with whom she shared over 50 years of marriage.

Born on August 17, 1942, in Hanover, PA, she was the daughter of the late Harry Seager, Sr. and Kathryn (Carrigan) Seager (Blockinger).

Bonnie dedicated 32 years of her life to working as a dental assistant. She began her career with Dr. Blymire and spent much of her career working alongside Dr. Roth, until her retirement at the age of 66.

Bonnie enjoyed painting, birdwatching, and had a special affection for animals. Above anything else, she loved the time spent with her family. Family gatherings brought her great joy, with Christmas being undoubtedly her favorite time of year. She especially loved having everyone together for the holidays and took great delight in her collection of Santa Claus figures, which reflected her love for the Christmas season.

In addition to her husband, James, Bonnie is survived by her children, Lester L. Witmer, II and his wife, Vickie, Kim D. Rineholt, wife of the late Shawn Rineholt, and William Bialcak and his wife, Shelly; eight grandchildren; twelve great-grandchildren; and three great-great-grandchildren. She is also survived by her sister, Connie Horner, wife of the late Gary Horner, as well as numerous nieces and nephews. She was preceded in death by her three brothers.

A viewing will be held from 10:00 to 11:00 AM on Friday, October 16, 2026, at the Austin H. Eberly Funeral Home, Inc., 104 W. Main St., Dallastown, PA 17313. A funeral service will begin at 11:00 AM, with Pastor Tom Adams officiating. Burial will follow in Susquehanna Memorial Gardens.

The family would like to express their heartfelt gratitude to Kelly and Tom Adams, all of Bonnie's devoted caregivers, and the staff of Bayada Hospice for the compassionate care, kindness, and support they provided to Bonnie and her family.

In lieu of flowers, memorial contributions may be made to The Parkinson's Foundation, 5757 Waterford District Drive, Suite 310, Miami, FL 33126, or online at The Parkinson's Foundation.