Now here's another way of confirming the same thing, in theory, although not in this precise case. You can go to my campaigning account, @maryonthegreen, and find my request. (Again, tiresome scrolling. There is a better option that we'll get to later.)
Well, @MargaretAtwood, would you tell the world about our campaign for a London statue to Mary Wollstonecraft? http://www.maryonthegreen.orgThe full image is below. At its bottom, you'll see it says "Retweeted by kakennedy and 48 others". As far as I can tell, @kakennedy just happens to be the last person to forward my request, and as such her name appears, and her avatar is the one to the extreme left. Again, we can only see a small proportion of the whole number of avatars, and again, in the real web page you can mouse over them to see more names, but not in this static image. Because so many people quickly followed MA's excellent example (48 divided by 200 000 -- let's not think about it), her avatar is no longer visible, buried under the later-comers. Had there been 14 or fewer retweeters, they would all have remained on the top page.
We're almost there.
Notice that in none of these examples am I signed in to any account or any service (e.g. see the top right-hand corner of the Twitter pages). All of this is open to everyone. Twitter is, by default, a public conversation.
One last thing I tried, on what has for me been a tiringly techy day: Blackbird Pie, an experimental service to bake a tweet into a blog, to set before the Margaret King, or something. But again, it starts by assuming that the URL is to hand. It wasn't, at the point when I needed it, so Blackbird Pie did me no good. Maybe another day.
All that, to get a flicker of attention from a celebrity? All that, merely for a potential supporter of Mary on the Green? No, I tell myself: all this is in quest of self-education. Our Lady would approve, I think.
Bonne nuit, Mary Wollstonecraft. Bonne nuit, Margaret Atwood. Bonne nuit, tout le monde.