This plugin attempts to wrap the 'bio' of a person in a
<p class="person-bio"><?php echo wpautop($person_bio); ?></p>
However the use of the use of the wpautop() function (line 213 and possibly elsewhere) causes the result to be
<p class="person-bio"></p> <p>this is a test bio</p> <p></p>
which negates the usefulness of the class for styling.
also it seems moving that line to just after line 191
<h3 class="person-title"><?php echo $person_title; ?></h3>
makes the bio show inline with the image and makes it look a lot better.