Hi Ashley. Have you ever visited Mary Lincoln's Coterie? It is a very nice website operated by 3 ladies. One of these ladies is Donna McCreary, a member of our forum here. About themselves, the ladies say, "We are good friends who share a common interest – that interest being Mary Lincoln."
Additionally, they say, "Every year in July, we met in Springfield, IL for a few days closest to the anniversary of Mary Lincoln’s death. During these days, we host a wreath laying ceremony at the Lincoln Tomb; participate in performances and lectures at The Lincoln Home; host a Memorial Luncheon; and participate in a variety of other events and programs."
Anyway, there is a review of the book you are going to read if you look near the bottom of the coterie's web page
here.
The home page for Mary Lincoln's coterie is
here.