an exhibit with two slightly nutty opera-loving sisters who rescued people from Nazi Germany?

[JJ]

I know I read about it within the past couple of weeks and I want to go see it and take my son. But I can't even remember enough about it to google! It's somewhere or going to be somewhere in London - does anyone know what I'm talking about (because I sure don't...)?

Found it!

They're Ida and Louise Cook and it's a lecture, not an exhibition at The Wiener Library. And I found a book by Ida Cook, too, which looks good - Safe Passage.

Anyway, it's on the same night as something else, so I can't go, oh well.