I was talking earlier to the National Maritime Museum about organising an editathon. They wanted to see what use we thought we could make of the material in the archive collection, and whether Wikipedians would be up for coming and making use of it. I am anticipating that this could prove very popular, but if any of you are naval/maritime/biography/astronomy editors, it would be really handy to have some specific examples of things we might do to build the case for this event taking place. (And to answer the most obvious question, we're currently discussing how much latitude we'd have to digitise things there and then.)
Their archive catalogue is available here: http://collections.rmg.co.uk/archive.html#!asearch - obviously we would have access to the museum and its library as well.
Regards,
Chris