Who is PJ Dooley & Margaret Dooley from Creature of the Night and what is their importance?

PJ and Margaret Dooley are a married couple that live on a farm in the rural areas around Ennis in County Clare, Ireland. They are the parents of seven children, only two of which—Matty and Coleman—appear in the narrative. The Dooleys are salt-of-the-earth type people who are fond of hard work and hold high standards.