Clemons must have had an interesting life. My grandmother gave me a picture once-upon-a-time that she said was of Clemons and his wife Ruby. Something tells me you are right about Fannie M. being so much older than he. I didn't even know about her. I thought Fannie L was the daughter of Clemons and Ruby.
My guess is that Ruby must be that second wife you spoke of.
Thank you so much for taking time for my family. I have so much to learn.