Perhaps Ellen should have posted the URL as plain text (sometimes simpler us is better!) and used WikiTreeID instead of Page-ID:
www.wikitree.com/index.php?title=WikiTreeID&action=history
Copy the highlighted link and replace the bold text with the relevant WikiTreeID.
Let us know if that is the functionality you are seeking, William!
Let us know if this link works for you, too, Jerry!!
edit: Apparently the system won't let us post the link as plain text - trying to adjust it.
edit 2: Success - just omit the https:// part when posting a link as plain text in g2g. The world is now much wiser!!
edit 3: fixed a typo - Doh!!