OK, so I was able to get it to work by changing
<p class="byline01"><?php the_author('namefl') ?></p>
to
<p class="byline01"><?php the_author_meta('first_name') ?> <?php the_author_meta('last_name') ?></p>
That seems a bit clumsy and awkward to me. Is there a better way of doing it?
L.