Hi Mary. Like you said, there are lots of Amanda Mattingly's around that time. The closest I have is an Amanda Mattingly born in September 21, 1852 to John Mattingly (b.March 8, 1822) and Margaret Hotz (b.1830) They were married in May 10,1848. John's father was William Mattingly, born in 1794 in Kentucky and his mother was Elizabeth Manning, b.1788. Probably isn't the one you are looking for, but maybe people out there have more. Good luck.