Here is an excerpt from Steinbeck's personal journal when he was in Visalia in the winter of 1938:
I must go over into the interior valleys. There are about five thousand families starving to death over there, not just hungry but actually starving. The government is trying to feed them and get medical attention to them with the fascist group of utilities and banks and huge growers sabotaging the thing all along the line In one tent there are twenty people quarantined for smallpox and two of the women are to have babies in that tent this week. I've tied into the thing from the first and I must get down there and see it and see if I can't do something to help knock these murderers on the heads They think that if these people are allowed to live in camps with proper facilities, they will organize and that is the bugbear of the large landowner and the corporation farmer. The states and counties will give them nothing because they are outsiders. But the crops of any part of this state could not be harvested without these outsiders. I'm pretty mad about it (E. Steinbeck and Wallsten 158). Steinbeck's experiences in Visalia led to his creation of the torrential rains at the end of "Grapes of Wrath" and also led to his dramatic ending to the main character Tom Joad in the novel (DeMott xxxvi). These experiences also lead to his classic lines talking about the migrant's grapes of wrath,