Thanks. Yes I have tried the findagrave site but she is not listed. I have the Summers County and Monroe County cemetery books but she is not listed in either one.
I have been unable to locate her in either the 1870 or the 1880 censuses. Of course that is not unusual - different spellings, etc. - but I have tried every spelling that I can think of; I have searched to see if she is living with one of her children, etc. I don't doubt that she is probably there but I sure can't find her. And I have seen no reference that documents the 1888 death date.
What is the Burton Garten book that you mentioned? I am not aware of it.