Dawn completed her life in Houston, Texas, passing away December 15, 2010.She was the daughter of Donald L. and Gail J. Rymer. She was a 1987 Warren High School graduate. She received her Bachelor of Science degree from Marietta College and her Master's degree in Chemical Engineering from Ohio University. She completed her Ph.D. in Chemical/Bioengineering at Texas A&M. While at Texas A&M, Dawn did research on Prion diseases, such as Alzheimer's, Mad Cow Disease, etc. She was selected to present at the International Conference on Alzheimer's Disease.Following her education, Dawn was employed by Exxon Mobile, in Upstream Information Technology, Research Application and Development, where she continued to work.Dawn is a member of Phi Kappa Phi Honorary, Phi Beta Kappa, American Mensa, the American Chemical Society and other professional organizations. She was active in the Vasculitis Foundation. Dawn was a member of the First Presbyterian Church.Dawn is survived by her fiance', Ivan Scheffler; her parents, Donald and Gail; her sister, Lesley Sills of Palm Coast, Fla.; her niece, Madeline Sills; her paternal grandmother, Betty Rymer; her aunt, Evelyn Clifton (JB Clifton); her uncle, Gary Rymer (Margie); and several great aunts, great uncles and cousins. She leaves behind her beloved cats, Katish and Bartholomew.Dawn was preceded in death by her grandfather, Guy Rymer; her grandparents, Edna and Cliff Grossenbaugh; her paternal aunt, Kay Windland; and her beloved St. Bernards.Dawn fought a long and courageous battle against vasculitis. She was a great inspiration to many. Memorial contributions may be made to the Vasculitis Foundation or the First Presbyterian Church (Parkersburg) Christmas Day Dinner. A celebration of Dawn's life will be 2 p.m., Sunday, December 26, 2010 at the Lambert-Tatman Funeral Home, 1305 Washington Blvd., Belpre, Ohio. The family will receive friends from 11:30 a.m. until service time Sunday.