Movie set in the 1930's or 1940's?

It is about a woman who becomes a teacher to pay off her deceased father's debts. She remains a teacher all her life. I remember a scene where all of her now adult former pupils are standing around in front of the hospital she is in after having falling ill. One of the women says to her husband, who is nervously biting a fingernail, that if he had had this teacher as his teacher she would have broken him of that habit. There is another scene where there is evidently a run on the banks because of rumors and the teacher calmly makes her way up to the front to the teller's window and when asked by an irritated man who is in line why she is jumping in ahead (because he wants to take out all his money) she calmly tells him that since she is depositing her government pay check her business will take less time than his. And then she takes her time signing the back of the check and giving it to the teller and then it's time for the bank to close and no one else can take out their money. The teacher basically saves the bank from having all its money taken out because of what she did. Please, please - what is the name of this movie????