I found a lot of articles regarding John F. Ridenbaugh who was a druggist in Boise, along with his brother William. I have the obituary for William as well as Mrs. Willam B. Morris, their aunt.
I did not find anything on the John Ridenbaugh who died in 1887.
If you would like the many articles I found, please e-mail me and I will e-mail them back. There are too many for me to type them up.
I am not related. I just like to volunteer my time to help others researching their ancestors.