Added_User not returning a name but a "numeric string"

Added_User not returning a name but a "numeric string"

I have several portal users who are inserting records into a table. I need, for an email, to list the users along with the records they have entered.
I am trying to find the users with the following statement (or nearly).

 UserList = Table[TableReference ==SearchReference].distinct(Added_User);

I have also tried

UserList =( Table[TableReference == SearchReference].Added_User).getall();

with the same result.

What I get in UserList is a 'numeric string' - looks a lot like a row reference ID to a table somewhere...... not the user name

Can anyone help - thanks