Who is Harry Prior from The Eye in the Door and what is their importance?

Harry Prior is Billy Prior's father. Harry is a boorish man who abuses his wife physically and emotionally. Harry is approximately fifty-five years old. Harry Prior is working class and proud of it. He does not trust the government and believes that the war will result in economic ruin for those of the lower classes. Harry Prior is a traditionalist who believes that men and women should adhere to strict gender boundaries.