If folded clothing was found on the deck, it was folded after the storm which hit the day they left. Folded clothing does not stay on the deck of a boat with 30knot winds blowing across it.
The bumpers may have been tied to a railing and simply cast on deck as they left port. In a storm, even a mild one, those bumpers may have rolled over the side, and stayed there-tied to the railings.
The bumpers may have been tied to a railing and simply cast on deck as they left port. In a storm, even a mild one, those bumpers may have rolled over the side, and stayed there-tied to the railings.