During the 1920's and 1930's vandalism was a major issues during Halloween parties. Schools and towns had many issues controlling the problem no matter how hard they tried. Fortunately, by the time the 1950's rolled around, Halloween was mostly celebrated in homes and classrooms instead of giant parties. The target audience was also children, who were much easier to control.
I think that Hellen Keller was a very loud and outspoken person for someone her age and with her conditions. My thought about this is that it is what she uses to try and comunicate with other people to make sure that they would still notice her.