A suitor walked us through a good lesson this morning. He has good IT installation opportunities and wants a good trust situation.
General Public Trust.
We ended up where we started with different perspective. Imagine setting up the linked trust in your FIRST MIDDLE LAST legal or full name. When you call the IRS the agent will ask when the Trust was registered because John Henry DOE is such a common human name - and the agent is just looking for the artificial "PERSON" - for ITS Date of Birth. So you would truthfully answer the NAME on the Birth Certificate and the DoB and the IRS Agent would inform you that the TRUST NAME is already in use. And that would likely be by YOU.
So the TIN you seek is the SSN with the hyphens relocated.