Ok, so I'm guessing you have the main layout where you input all this data?
Application is the layout I presume?
I suggest you make an inner-table relationship - eg: Link ApplicationLayout:Name with ApplicationLayout:Name - so then you have a new table - ApplicationLayout2
Create a portal from ApplicationLayout2 listing the items you want to appear.
Now, I also assume you have relationships set between the ApplicationLayout:EPA ID and your agent table?
So then you can input the field necessary on your portal to display this information.
So far you have now created a portal listing all the EPA's of this specific person and it should show all EPA's under his name, because the relationship you have created is by the "Name" field.
If it doesn't work, then I suggest creating an inner-relationship using the person's ID incase you have more than one person with that surname, etc.
I think this is what you are trying to do. If not, give me some more information and we can go on.
Check your messages. Thanks
Ok after looking through the information on your database, it seems that the link was incorrect.
You had connected 2 ID's together instead of the field you wanted the relationship with.
Remember a portal will only display direct information if the field you have is in relation to the table you want to display this information.
Good luck with your Greenhouse Project :)