<<Disclaimer: Verify this information before applying it to your situation.>>

Firstly, thank you!!!

The upshot of the many responses <40+ and still coming in as of today> is that
the following soup broths can be used:

   Health Valley <both the chicken and the beef>
   Herb Ox boullion cubes
   Dominique's
   Campbell's Healthy Request
   Shelton's Chicken Broth
   Kitchen Basics <both the chick and the beef>
   Swanson's Chicken Broth
   Trader Joe's <this is a store chain> has its own GF soup broths.

Again, many thanks for the wonderful support you all show.