Do the Employee Record import first. Import the fields it gets first. Go to a layout for each of the other two tables, do the import for those fields. It is three separate imports, it is just that you are using one source.
However, your relationships do not look like they are set up correctly. The fields ending in "FK" should have "crowsfeet" in the relationship line that connects to them. This indicates that you have set up those fields either to auto-enter a serial number or they have a unique values validation specified and that should not be the case here.