Thank you very much Mona. This is indeed very helpful. I think that the Clinton D. Ferris who is also buried in this cemetery was Alden's brother. Clinton appears to have deserted or divorced his wife, Maggie Stewart, as she remained in Greene County, NY with their son, Henry Clay Ferris, who went on to become Sheriff of Greene County.
I'm not related to the family. My curiosity came about a few months ago when I attended a slide show in Ashland, NY and saw a picture of Alden Ferris' hardware store. It was assumed to be a local photo, but no one knew where the building had been located. I said that the setting looked more like Kansas than NY. I wasn't off by much as subsequent research showed that his business was located in Nebraska.