Welcome back FriedGreenTomatoes in your new guise.
I hope you enjoy Babysitter, a word of warning, there are some upsetting bits relating to child abduction, the abductor was known as "Babysitter". However, it is a novel, you'll cope with those bits, particularly as I think I remember you saying previously that you'd read and liked "A Little Life", I haven't, but I know some who have, pretty gruelling I gather,
Of those books you've mentioned above, I've read The Paper Palace. Yes! very good, it was a holiday read from a couple of years ago lazing around a swimming pool in the heat.
Also The Radium Girls, what happened to those women was absolutely shocking.
Making a note of your other recommendations.
Do give us your feedback when you've read Babysitter,