Mary Catheryn Larsh, age 95, of Eaton, OH passed away on Wednesday, October 13, 2021 at the Elmcroft Senior Living in Miamisburg, OH. Daughter of the late Herman Henry and Lottie May (Ehler) Roselius, she was born in Preble County on July 18, 1926. Mary Catheryn was a 1943 graduate of West Alexandria High School. She was a life member of Trinity Lutheran Church in Lewisburg, OH. She married William Lee Larsh on June 14, 1951. She enjoyed golfing and traveling with her husband Bill. In addition to her parents, she was preceded in death by her husband William “Bill” Larsh who passed away in 2012; infant brother Clarence Herman Roselius; and brother-in-law Elden Grimme. She is survived by her sister Martha Carolyn Grimme; nephew Duane (Donna) Grimme; great niece Kari (Matt) O’Diam; great nephew Ryan (Amanda) Grimme; great great nieces Allee and Emma Grimme and Olivia O’Diam; great great nephew Levi. A private graveside service will be held at the convenience of the family. Girton Schmidt & Boucher Gard Funeral Home, Eaton, OH is assisting with arrangements. Memorial contributions may be sent to the Humane Society of Preble County, P.O. Box 72, Eaton, OH 45320 or Affinity Hospice Care, 7681 Tylers Place Blvd, Suite 3, West Chester, OH 45069. Online condolences and other remembrances may be sent to the family by visiting www.gsbfuneralhome.com.