From Ron Williams: Here is the list of Frisco Depot floorplans I have. The spreadsheet also indicates if I have a photo and its era. I have now added what towns I have interchange maps. The interchange maps have no date on them but given some of the railroads listed for interchange I would estimate that they are early 1900's. Still interesting in that on the back of each sheet is the name of the industry that corresponds with the number on the map.