The Lando series as by Tex Kirby?

One of the Finnish Landos:
"Don't Show Mercy, Lando"

There are fourteen books published in Finnish paperback series as by "Tex Kirby". The books are westerns and they feature one Brad Lando as the hero. Now, there seems to be at least two Lando books published by British cheapo publisher John Spencer (in their Badger paperback imprint), called Lone Gun Renegade (see photo below) and Arizona Manhunt (both 1971). But I can't seem to be able to find any info on the other Brad Lando books. In the Finnish editions they are clearly announced to be translated from English as they have such original titles as "Wildcat Breed" and "Trial by Gunsmoke". For some reason or another, Lone Gun Renegade isn't one of the Finnish Landos.

But there's nothing on them in any place I can think of. Pat Hawk's pseudonym catalogue credits John S. Glasby having written two Lando titles, but there simply are no other Tex Kirbys or Landos in Abebooks for sale - I even went through all the "original" titles in the Finnish Tex Kirby books and checked whether Abebooks had them.

These could of course be anything: something penned by German writers with hoax English titles; something written by English writer or writers, but left unpublished in the UK and published only in Scandinavia (or even only in Finland); something penned by someone else entirely, but published for some reason in Finnish under different name or title. Similar things have happened in the past.

Edit: I edited this, since there were some errors in my posting. Pat Hawk's pseudonyms catalogue does indeed list Lone Gun Renegade and Arizona Manhunt as written by John S. Glasby, but other than that, there's nothing.