Morphy, Loewenthal, Young Man, and Lady

Here's a little mystery that I haven't been able to solve. The image on the top is a well known photo of Paul Morphy playing Johann Loewenthal (1810-1876). I've seen it several times on eBay, the last time with the description

Here's a copy from an 1860's stereoview of a young man and older gent, perhaps his father playing a game of chess. Note that this is a high quality pair of photos created from the original 1860's stereoview and affixed to a period mount.

The image on the bottom, which I've also seen before, was offered on eBay by the same seller at the same time. Its description said,

Here's a copy from an 1860's stereoview of a young man and his lady playing a game of chess.

plus the same note about being 'created from the original', etc.

Looking at the images separately, I had never noticed the similarity, but, viewed side-by-side, it's obvious that they were taken using the same setting. Although the angle of the camera (or whatever they used in the 1860s) is slightly different, the chess table is the same and the urn-shape behind the heads of the players sitting to the right is the same object.

Are the 'young man and his lady' related to or somehow connected to Morphy (or maybe to Loewenthal)? If so, how exactly?