I believe you have an incorrect date of death. A Jacob S. Koller who died Jan. 23,1908 at the age of 70y-1m-17d is buried in the Lutheran cemetery, Shrewsbury, York County, Pa. with his wife, Sarah A. She died Nov. 11,1902 at the age 58y-0m-17d. You should be able to obtain a death certificate for Jacob which would show his parents. Since Pennsylvania began issuing death certificate in 1906 you cannot obtain one for Sarah.