The Grapes of Wrath: Symbolic Characters Struggling through such things as the depression, the Dust Bowl summers, and trying to provide for their own families, which included finding somewhere to travel to where life would be safe. Such is the story of the Joads. The Joads were the main family in John Steinbeck's The Grapes of Wrath, a book which was written in order to show what a family was going through, at this time period, and how they were trying to better their lives at the same time. It wouldn't be enough for Steinbeck to simply write this story in very plain terms, as anyone could have simply logged an account of events and published it.