You identified the problem exactly. I did not register the custom taxonomy in functions.php. If you had not told me how to do this and provided the snipped I would be lost, so thank you very much.
I would like to point out that to make the archive work for the custom posts types (with the custom Taxonomy) I had to select the correct Taxonomy in the custom Taxonomy selection box and ALSO check off the identical Category Taxonomy in the standard WP Catagories box. I am totally ok with this, but want to point it out to check and make sure this is ok and won’t bite me down the road.
Thank you for your help!
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