I would browse this tag. However, there are only 18 hits on "Beam Piper" on the site, and many refer to story identification answers (i.e., not people who know they're looking for H. Beam Piper). What are the general grounds for an acceptable level of notability to warrant a tag?
A cursory glance at the site's 18 uses of "Beam Piper" reveals precisely zero questions about the works of H. (Horace? Herbert? Henry?) Beam Piper. As you've indicated, the majority of mentions are story-ID questions (where re-tagging with the author's name would be inappropriate) and "first example of" questions.
Noting that we don't usually create an author tags unless there's a good reason to do so (for example, someone asking a question about that author), we certainly won't create a tag until someone asks a question about their works since that tag will just get roomba'd if there aren't any relevant questions attached to it.
"Tags not associated with any question are automatically destroyed at 03:00 UTC every day."