The absolute most important piece of information for copyright status is the publication date, not the publisher--though the publisher certainly helps distinguish among similarly-titled books. That's because the Catalog of Copyright Entries was an annual publication listing the year's renewals--without the year, there's no way to know where to look.
Golden West Love is--oh, crap--1949-1950. That's when the Library of Congress was migrating the Copyright Office to a computerized database, so this is always an adventure. Heaven help you, if you're ever looking for a book copyright around that time...
Anyway, checking the database first (cacatalog.loc.gov, should you want to play along at home), I don't see anything. However, in the catalogs (any web search will turn up Ockerbloom's scans at UPenn), I find something unexpected. It's not quite where I'd expect it, but in late 1977, CBS filed a renewal for six issues of "Golden West Romances."
The dates seem to match up to the first three issues listed on the GCD, and the name is REALLY close, so I don't know what to make of it.
Checking to see what Google might know...hm. Interesting. Yeah, rather than edit what I've already written, I'm going to just plow ahead in hopes that it helps somebody.
Here's as much of the situation as I can figure: In 1949-50, there was the "Golden West Love" comic and an unrelated "Golden West Romances" magazine.
http://comics.org/covers.lasso?SeriesID=20012http://www.philsp.com/data/data154.htmlThere are periodical renewals for the latter, but not the former. In theory, this would mean that the comic is in the public domain, because the renewal I found is for something else.
However, some companies (and I know that Kirby did this at least once, though I don't know if this publisher is his) took the option of copyrighting and renewing their books for a full year as a normal book. And here's where that date is important: From 1975-78, the renewal records are sorted by renewal number, rather than title or author, and there's zero chance that anybody's going to convince me to go "dumpster diving" through hundreds of pages to see if there's a renewal buried there--imagine if the White Pages was sorted by number and you need to find me, and you have some idea of what's in there.
If pressed, I'd say that the chances that it's in the public domain are around 85%, so you and the moderators can hash things out from there...