I believe the answer is: Cry less and have a stronger sense of security
Baby's crying is a form of surviving mechanism to fulfil both of their mental and physiological needs since they could not obtain it by themselves.
When these needs are met quickly, the baby would perceive that they are surrounded by dependable caretaker, which make them cry less and feel more secured.
The term dust bowl is most closely associated with the major drought occurred during the 1930's. Farmers had removed millions of acres of natural grass sod to plant wheat during the previous twenty years. The soils were left exposed to the strong winds that annually sweep across the region.
I think that they feel that it is important to remember the challenges that their ancestors faced so that they could have the freedom that they have today.
