Here are the floor plans from the architect from when we fixed up the house.
Note that one change was made after these drawings. The door right in the middle of the center wall was removed. That gave us much more wall space in the home office and the formal dining room, and there's plenty of access from two directions to both rooms anyway.
In this drawing, the indentation in the center wall hallway is for the built-in storage. Lots of drawers and cabinets!