It sounds to me like you only want to show said block on that page and nothing else. You might be better off implementing hook_menu() to register a callback (a page) which displays custom content, instead of creating an empty page and showing a block on that.
It might look something like this:
/**
* Implements hook_menu().
*/
function MYMODULE_menu() {
$items['currant-trustees'] = array(
'page callback' => 'MYMODULE_currant_trustees',
'title' => 'Currant trustees',
'type' => MENU_CALLBACK,
);
return $items;
}
function MYMODULE_currant_trustees() {
$content = 'This is where your content should go, just copy the code from the block content';
return $content;
}