Who is Old Man from Wanda Hickey's Night of Golden Memories and what is their importance?

In The Grandstand Passion Play of Delbert and the Bumpus Hounds, The Old Man is shown in his true element here. He awakens the night the Bumpus family moves in next door, cursing them and the fact that he has stubbed his toe for the millionth time on the bed. The battle between the Old Man and the Bumpuses is covert and rather quiet until the episode of the Easter Ham, when he is deprived of one of his most favorite and anticipated culinary treats by the Bumpus hounds entering the house in a horde and stealing the ham. From this point forward it is open war, not that the Bumpuses notice. When the Bumpuses finally disappear, the Old Man is every so slightly disappointed that he no longer has a daily adversary.