Apparently the poem is supposed to be on this page:
http://www.geocities.com/bandt10/bough3.html
but the page isn't available right now. Maybe you'll be able to open it later.

(The Google cache can bring up a page that links to that one [http://www.geocities.com/bandt10/bough4.html], but it doesn't have the page itself.)

Or maybe you could ask William Bough himself at marbo@cybase.co.uk or his web page manager at litha@nbnet.nb.ca. (I got both those addresses from the cached page shown above.)

If you search again, use the search arguments "William Bough" and "Remembrance" (note spelling).