Many primary sources cannot be understood because of the language or they way they have written it. We can't always understand it because its from a culture completely different from our own. Reading primary sources requires your his historical imagination.
Answer: Children below working age were utterly dependent on their parents, and when those parents were unemployed-as was common in this age of double-digit joblessness-hunger often resulted. Surveys revealed that a fifth of New York City's children suffered from malnutrition at the height of the Depression (Mintz and Kellogg 1988, 140). In the impoverished coal regions of Illinois, Kentucky, Ohio, Pennsylvania, and West Virginia, the malnutrition rate may have exceeded 90 percent.
Explanation:
Richard provides a social comparison in the case above. Social comparison is a way of having a determinants of an individual's worth in terms of socially or physically in relation to other people. It could be seen above above as they try to evaluate and compare the relationship and worth of the siblings of Jose.