Our connection to the Hussong family is from Elnora Hussong [1888-1965], to her father, George W. Hussong [1854-1929], to his father, Andrew B. Hussong [1822-1882]. I haven't found a source for Andrew's parents, but the family has these photos, with a note saying they are Francis and Elizabeth Hussong, no other information.
A cousin holds these two photos. I haven't seen them in probably 4 years or more, and can't remember exactly, but they appear to be daguerreotypes, you can see examples here.
I've done some [very basic] editing to the photos - to try and make them clearer, since the scan was done with them in the cases. If you happen to see these, and recognize them from other photos you've seen, I'd love to hear from you!