(YouTube link)
The moral of the story is: if you are going to sail off the coast of Wales on December 5th, you may want to change your name to Hugh Williams. But is this a true story? Any records from these incidences seem to be at least second-hand. I found a post at The Scuttlefish that may shed a bit of light on how "coincidental" the story really is. And be sure to check out the comment from Hugh Williams. Link
Hugh (Hew/Huw etc) is a very common Welsh given name.
Williams is the second most common Welsh family name.
It is very unlikely that there would be no wrecks in the Menai Strait's huge catalogue of disasters that could be grouped like this!