The Graves Registration Cards lists only Hocking County Veterans. If the Starr Cemetery books do not list George Sudlow, or Sarah Lewis then the place I would contact is the Records Department of Hocking County Court House 51 E. Main Street, Logan, Ohio 43138 Att. Jany Seibert
The fees for looking for death records are $1.00 per page( usually 2 pages). It could be sent with your request for a search.