guild_of_wolves

Here is the relevant piece of my content-single.php:

<article id="post-<?php the_ID(); ?>" <?php post_class(); ?>>

	<header class="entry-header">
		<?php the_title( '<h1 class="entry-title">', '</h1>' ); ?>

		<div class="entry-meta">
			<?php littleseedsfarmschool_posted_on(); ?>
		</div><!-- .entry-meta -->

                <div class="post-header-image">
	                <?php echo the_post_thumbnail('post-header-image'); ?>
		</div>

	</header><!-- .entry-header -->

Here are the two additions to my functions.php:

add_theme_support( 'post-thumbnails' );

add_image_size('post-header-image', 960, 300, true);

Thanks again!