According to Perry Gleanings and the Unity Cemetery transcription. Her Tomnbstone says she d. 8 Oct 1888 A. 18y 6m 11d but the Gene Pool information at ancestry.com says she was born in 1867 which would have made her 21 years old at the time of her death. Need to be aware that the tombstone is old and perhaps misread. I think it may say she died in 1886. That would make everything else work including the fact that her brother was born in 1869 so I can't correct her birth date to that year.