Hi Jane,
I assume these are static display models and not working ones. I'm afraid most museums would not be very interested as they are of course kits rather than historical items. Unless anyone has any other suggestions it might be worth putting them into a local auction and see what interest that brings. There are specialist model boats auctions but these would not be very interested in taking kit models.
Would it be worth contacting a local school to se if there is any interest in them?
Regards
Colin