Photographs helped me understand what the time period was like. It also helped me picture what migrant workers during the Depression faced. They help to show what life was really like during the Great Depression. They are also good examples of the kind of work that Dorothea Lange did during the time period to show how people were suffering.
Delia's action shows that she loves her new husband Jim enough that she is willing to sacrifice something she values in order to get him a Christmas gift. She has an unselfish, loving character.