Elder/Dempsey Timeline 1769 Robert Elder born in PA 1775 Mary Dempsey born in PA 1780-81 Cornelius Dempsey in militia, Rev. War (father of Mary) 1786 Cornelius Dempsey felled by a falling timber in Northumberland, PA Pvt. under Capt. William Harris, Chester Co. Militia 1789 (abt) Robert Elder married Mary Dempsey 1790 US Census - Robert Elder in Northumberland Co., PA 1791 Church pew rented by Robert Elder, Thomas Elder, and David Buchanan in Presbyterian Church at Buffalo Crossroads, Northumberland Co., PA 1796 James and Jonathan Dempsey petition for Robert Elder as their guardian 1800 US Census - Robert Elder in East Buffalo, Northumberland, PA 1802 Robert Elder is residing on John Kelly s place, Northumberland Co., PA 1812 The whole family moves to Jackson, OH 1820 US Census - Robert Elder and Giffith Anderson in Clinton, Jackson, OH 1830 US Census - Robert Elder Sr., Robert Elder Jr. in Clinton, Jackson, OH 1835 Robert Elder dies in Jackson, OH, buried in Bundy Cemetery in Wellston, OH Anne (Nancy) Iddings Dempsey, widow of Cornelius, dies in Jackson, OH 1836 Robert Elder will probated in Jackson, OH 1837 Family, incl. widow Mary Dempsey Elder moves to Knoxville, IL 1840 1850 US Census - Mary Dempsey Elder with son Thomas Elder in Effingham, IL 1859 Judge James Dempsey (son of Cornelius) dies in Knoxville, IL 1867 Mary A. Dempsey Elder dies25 Jul in Orange, Knox, IL Elder/Dempsey Timeline ~ Page 2 The family of Judge James Dempsey moves to Oregon: Note: Ann Dempsey, widow of Cornelius (I) lived with Jonathan, and died in OH. James, son of Cornelius (I) and Ann Iddings, and wife Susannah had eight children, the youngest being: Isaac Iddings Dempsey, born OH 21 Aug 1820 1840 Isaac married Nancy Ferguson in Knox Co., IL 1862 Isaac and family moved to Monmouth, Oregon See: My Trip Across the Plains by Mary J. Dempsey Bronson, 1915