Why not a custom taxonomy?
Tracy Durnell (tracydurnell.com)Bookmarked Introducing Term Meta Data In WordPress And How To Use Them — Smashing Magazine (Smashing Magazine)
WordPress 4.4 introduced **term meta data** which allows you to save meta values for terms in a similar way to post meta data. This is a highly anticipated and logical addition to the Wor…
You mean a custom field for the author, not a tag at all? ? On another WordPress install I used a plugin that let you add custom fields… I might get excited and add several new fields if I was going to do that ? I’ve also been tagging books and movies with the year they were written/made (and set if known)…