Thanks for the history of KXYZ Filio. I always thought it had stayed BM all through the 60s. ABC brought in Paul Mitchell from Philadelphia and he reinstalled a very controlled, produced beautiful music sound but minus the mood setting pieces. Milt, Max and Morris Kamin had purchased KXYZ in 1961 and brought in Willis as PD. I always listened when I was in town in that era and it was a very impressive station but it wasn't my kind of music and I didn't listen much. You can hear air checks on Grady McAllister's website.
What I was suggesting above that I've only clarified some in my mind thinking about this is that I don't remember any jocks on KXYZ and KTHT basically because there weren't any, not at the hours I listened in the late 50s. I believe either by the time I started listening or shortly thereafter, KTHT had started Demand Radio 79, the first of several formats they had over the years that were basically jockless.
Take a look at the brochure from late 56, early 57 in this post on my blog:
http://houstonradiohistory.blogspot.com/2009/08/kxyz-gallery.html
It shows what KXYZ programming was like at that time - note they were still carrying a lot of ABC programs including Breakfast Club. I'm not sure when KXYZ dropped ABC (which was picked up for a time by 1360 Baytown). Not sure if you could call that programming Easy Listening.
I have no idea what KTRH was playing in the way of music; possibly still some hillbilly, which all the stations had played in the 40s and early 50s. Just about everything was block programming still. As I said, I really didn't become very aware of any of the other stations until after Joel Spivak left KILT.
At some point in the 50s, KXYZ was supposedly a Top 40 station but I never heard it and don't have any dates.
I agree, in hindsight, given what we know or think we know about programming principles today, Fields probably would have been a better fit for KTHT or KXYZ than KILT and as I said my memories are not clear. But programmers made stupid programming decisions back then just like they do now and he could have been on any of them. The idea of block programming instead of a single sound/musical style all day long was still very much in vogue.
I am pretty sure he wasn’t on KYOK, though.