A brother, a father, and speaker. Sounds like a family to Shmoop, and an interesting one at that. For the first two thirds of "This Hour and What Is Dead," our speaker talks about his deceased brother and father, and their love for him. The loss of these two, and the memories the speaker has of them, are the basis for his emotional turmoil. The more we learn about our speaker, the more we realize that he defines himself by his relationship to his family. He is, at heart, a brother and a son.
The speaker's connection to his brother and father, though in many ways cherished, also keeps him from being at peace.
God is definitely part of this family, because our speaker resents God, just as he resents the memory of his brother and father.