List children of Page with excerpt

page_children.php

<?php
$pageChildren = get_pages('sort_column=menu_order&hierarchical=0&child_of='.$post->ID);
if ( $pageChildren ) {
	foreach ( $pageChildren as $pageChild ) {
		echo '<div class="page-excerpt-wrapper">';
		echo '<h2>'. $pageChild->post_title.'</h2>';
		if ($pageChild->post_excerpt){
			echo '<p>'.$pageChild->post_excerpt.'</p>';
		}
		echo '</div>';
	}
}
?>