Who is Mrs. Flanagan from Al Capone Does My Shirts and what is their importance?

Mrs. Flanagan is Cam's wife and Moose's mother. Mrs. Flanagan loves both her children, but Natalie's special needs scare Mrs. Flanagan. Mrs. Flanagan is fighting to help her daughter, determined to never see her in a mental asylum. Among the things Mrs. Flanagan has tried in the past is a study at UCLA and another special school. Mrs. Flanagan does not want her daughter to withdraw inside her own mind, unable to communicate with the outside world at all. To this extent, Mrs. Flanagan has decided that her daughter will always remain ten years old so that her chances of finding help with continue to increase, not decline.