thanks for the information and links.

- So, we're saying that Ed. Bolton Registered the name Grace Darling, under either 23527 or 39414 (probably the former), and the shape is covered by the later No. I could be wrong, but don't recall anything similar under pressed pieces where a real name was so Registered - though the late C19 does contain some v. well known names which appear on certain pressed pieces - Gladstone and Peabody, on plates, for example. Do you know if, in those instances, there were two Registration Nos. in a similar way to the subject here? Of course. the tragedy of the loss of her life became a cause celebre at the time and public feeling of sadness for her heroism was immense, and that may have driven Ed. Bolton to create the Registration in the way you say (for altruistic reasons, of course). I did hunt - albeit not very thoroughly - before posting, but couldn't find information in line with your answer, and was already wondering why the earlier of the two Nos. isn't listed by authors like Slack, Thompson and Sheilagh Murray - surely they must have been aware of the very obvious connection between the Registration for this boat (for which they mostly offer the No. 39414 only, for the shape), and as you say the other Registration for the lady's name. I think we all assume 39414 is for the boat, leaving 23527 for the name - though quite why the time lag before the later Registration I've no idea. Of course, that info. may well be in your link and I've missed seeing it. Again, I may have missed seeing provenance for these details on the Board somewhere, but I'm inclined to think that some form of positive id in the way of a Kew picture - to corroborate your answer - will be of great interest to folk who look in here, so a visit to TNA to acquire some images will be really worthwhile. I'm assuming that the Board's pressed archive must have pix of this Ed. Bolton boat. Having looked briefly through the above authors, the absence of information on Edward Bolton is deafening.
Thanks again, and yes your uranium example is stunning - very envious.

P.S. out of curiosity, has anyone been to Kew recently - are they more or less open for business?? - I can of course phone, but just wondered.