i checked the Mormons website and punched in hannah rockefeller's name. you may already have the following info, but in case you don't:
HR was born 8/9/1813 in ontario. she was the daughter of cornelius rockefeller. she married john troyer on 8/26/1830 in ontario. she died in abington, ill. the LDS site says date of death was 11/30/1931. however, that's pretty unlikely. she would have been 118 years old. i have been told that she died around 1901.
it appears she had 10 children with john troyer. first was born in 1832, and the last was born in 1860 (when hannah was 46!)