Among the many problems was the fact that the 2nd floor was sagging, it was low by about four inches toward the rear of the house.  I determined that the problem was due to the fact that the 4" X 8" timber that supported the 2nd floor above the kitchen was itself unsupported.

I imagine that this beam was originally supported by the load bearing wall between the kitchen and dining room, although they do not line up vertically. However, that dining room wall was now sagging into the basement by about 6 inches as the enormous 8" X 8" timber in the basement  that all the floor joists attached to was now rotted and collapsing from water intrusion.

The first floor joist were now unsteady and thus the dining room, hallway, and kitchen floors were  all very soft and had a "floating" or "bouncy" feeling when walked upon.

Here is a photo of the unsupported 4 X 8 beam in the ceiling of the kitchen(the board nailed to it on the right is a true 2 X 4 that measures 2 inches by four inches)  You can see how the dining room wall does not line up under it, it is 10" inches to the right.