Stone House - An Ancient Dugout House on the property?

This is a photo of a "dugout" home built by early western settlers.

My title research performed on this property does not indicate there are more than two houses on this property.

However, I believe this outbuilding is in actuality a third house on the property - that it is an old dugout house.  I believe at one time people may have lived in it and that the chicken coop was added on to the house.

There may be a lot of history buried around this building.

In the first photo here, there is an old sod house.  Now if you look at the photo of the front of the outbuilding on the property, the construction resembles that of a dugout house.