I believe that I found a blog post that mentions my dad, Robert Baca. On a post titled Strike Up the Band, the author mentions a "Bobby Baca" who apparently played coronet. My dad did indeed play the coronet and/or trumpet. Other items on the site indicate that the author is from Socorro, New Mexico, including names of some of the Zimmerly family. Remember, my maternal grandmother is a Zimmerly.
It would be interesting if this author knew my father. I hope he finds my post and we are able to connect via the internet.