What would have ultimately happened to Myra Savage in 1964?

My guess is that she would just have been shoved in an asylum somewhere. I don't think post-natal depression was much recognised in those days (especially worse after a still-born baby) - I can just imagine her being pushed out of hospital by a starchy nurse saying, "You'll get over it, dear". She would have received special treatment these days, I'm sure. Looking at the film from this point of view, the plot is quite tragic - audiences in those days would have just seen a looney, whereas modern audiences would see an extremely sick woman, desperately in need of help. The husband was too weak to do anything, but one would have thought that a doctor would have followed up the stillbirth, to check on the mother?