This question contains spoilers…
(view spoiler)[This is confusing to me. If the main characters were based on real people and the cabinet exists (Google it) why was it destroyed in the book? Yes, it's fiction but then why not change the names of the characters to be fictional? I'm afraid it left me with a bad taste after I had enjoyed all the rest of the book very much. (hide spoiler)]
Maggie I don't think that there is anything much known about Nella other than the cabinet. An interview that I read with Jessie Burton said that she just used that bit of info as a jumping off point.
Allison Shifman Chartier I didn't know that and just googled - what an odd choice to mix a real person, with their real name with so much else done as complete fiction. She wasn't that young, Marin never existed, who knows what else. I know other books have made similar choices, Carter Beats the Devil comes to mind, but I still don't get why that exact choice is ever made. Publicity? I wish no real people had their lives butchered in fiction.