The information you have is incorrect. I was able to get her obit from The church messenger. She died in about May 1885 at the age of 26years, 3mo and 8 days. of "quick consumption" I believe that is what we call TB. Samuel was 7 at the time.
I went to Ind in June of 2000, found her grave and got a lot of information like the marriage record from the court house at Goshen. Her grave is in the Olive cem. in the Olive township rather than with Adam's which is in the Harrison township. Flora was the adopted daughter of Mary and Samuel Johnston and their graves are near hers.
Your name is not familiar to me. Where do you come in on the family tree? Flora was my great grandmother.