Ironton ancestors

I have a photo that has to be from the family of Clara Margaret Hornberger Sammons.  I do not know who this couple is.  I do not believe it to be Clara's parents.

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Here is the back of the photo;




above information from below book found on-line.



And from this next book:








So it is likely that the photo was taken between 1866 and 1884.

Why do I think it likely that this is not a photo of Clara's parents?  Clara's parents were married c.1888 going by ages of the children.  Emma seems to have been the oldest child and she was born Feb 1889.  The dates of the photographer are before the couple were married.  It also doesn't look like Clara's parents.  So this couple is older than Fred Hornberger and his wife, Maggie Schmitt.