The Degenerates by J. Albert Mann

The Massachusetts School for the Feeble-Minded is not a happy place. The young women who are already there certainly don’t think so. Not Maxine, who is doing everything she can to protect her younger sister Rose in an institution where vicious attendants and bullying older girls treat them as the morons, imbeciles, and idiots the doctors have deemed them to be. Not Alice, either, who was left there when her brother couldn’t bring himself to support a sister with a club foot. And not London, who has just been dragged there from the best foster situation she’s ever had, thanks to one unexpected, life altering moment. Each girl is determined to change her fate, no matter what it takes.