the LaMothe document is on Manxnotebook - 3 or more witnesses are actually not that uncommon - I have (on my cd rom) nearly all 1757-1800 marriages with wittnesses.

I'd noted the lack of Malew marriages and had used BT to fill in the gaps - I'm surprised that they would be in bt and not also in the reg as where did a doddery old parson get them from to fill in the list for convocation - I suspect a page of register went missing.

The more interesting marriage I appear to be missing is that between Dominique and Susan