Author credit on RSS, recommendation?

I'm working on an artist's network here in Ireland. Artists blog as part of a research project looking at artists' practice. There are also site updates, news, links, etc.

One of the concerns the artists have is attribution on their posts which appear in the RSS feed.

I tried making some widgets based on the feed, and building custom RSS feeds with views.

How can I get the post author's name on the feed? Ideally, I'd like to use their profile>first_name and profile>last_name instead of the username.

Thanks for any leads.