its tricky but is possible with some PHP – so better question is what exactly would be the difference between each of the authors hooks ? As it may be simpler to create a single hook that outputs that content dynamically.
For Dynamic content you can use Advanced Custom Fields create a new User field so they are displayed in the user profile.
To display that field in the hook would require a little PHP:
// Get the post author ID
$author_id = get_the_author_meta('ID');
// Get the custom field
$my_custom_field = get_field('custom_field_slug', 'user_'. $author_id );
// Display field
echo '<p class="custom-class">' . $my_custom_field . '</p>';
This article goes into a lot of detail for creating User fields: