William H. Knowlan Sr. Obituary

We are sad to announce that on May 26, 2025, William H. Knowlan Sr. of Coldwater, Michigan passed away. Family and friends are welcome to leave their condolences on this memorial page and share them with the family.

He was predeceased by: his parents, Wyman Knowlan and Grace Knowlan (Yutz); and his wife Nancy L. Whitmore. He is survived by: his children, William H. Knowlan, Jr. (Patsy) of Coldwater, Carol Koster (Tom) of Jefferson, GA and Phillip Knowlan (Sonya) of Tekonsha; his sister Norma Bishop (Mike); his grandchildren, William H. Knowlan, III, Nicole Knowlan, Derek Coats, Brandi Barnett (Eddie), Steven Blair, II (Natalie), Grace Koster, Jack Koster and Parker White; and his daughter Karen Hughes. He is also survived by several great grandchildren; many nieces and nephews.

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