Una Rapp was the daughter of the owner of New Day Bakery, where Harry Pond worked when he lived in Tillamook.
Una was something of a wild child, resisting her family's efforts to control her. She got involved with a series of older men, including Verner Getty. After he started working at the bakery, she also took a liking to Harry, and got angry when he rebuffed her. She was present when Harry and Jonah Shibuya were brought to Short Beach by Getty. When Harry rejected her again she attacked Jonah with a knife. Harry, jumping to his friend's defense, was stabbed.