John Louis Biedenbach, 83, of Trenton, Michigan, died Monday, February 13, 2012, in Allen Park, Michigan. He was born January 11, 1929 in McConnelsville, Ohio to Joseph and Harriet McElfresh Biedenbach. John had received Bachelor Degrees from both the Ohio State University, and Carnegie Institute of Technology in Pennsylvania, as well as three Master Degrees from Wayne State University in Michigan. He retired from the Ford Motor Company as an electrical engineer, following 24 years of employment. He was a member of Our Lady of the Woods Catholic Church in Trenton and the Knights of Columbus. John is survived by his wife, Donna Jeanne Tebay Biedenbach, daughter, Amy Biedenbach of Augusta, Georgia, son, Michael Biedenbach (Elizabeth) of Toledo, Ohio, three grandchildren, Rachel, Evan and Brigitte Biedenbach and a sister, Virginia Roach of McConnelsville. He was preceded in death by his parents and a brother, Joseph. Funeral services will be held at the Marietta Chapel of Cawley & Peoples Funeral Home, 408 Front St., Marietta, Ohio, on February 17, 2012, at 1:30 p.m., with the Rev. Christopher Foxhaven officiating. Friends may call on Thursday from 6 to 8 p.m. Burial will be in Riverview Cemetery in Williamstown, West Virginia. Donations may be made to the Parkinsons Foundation of Michigan, 30400 Telegraph Road, Suite 150, Bingham Farms, Michigan, 48025.