Before Opie took the Reckoning, Iris "won a basket of food on he lottery a couple of years ago." She shared what was left of the basket with the Blackthorn family, giving Silver "a jar of jam".
In Reckoning, she and her family went over to the Blackthorn residence to see who the Offerings were, like they normally do. She and Evan were sitting with Silver's mum. Silver Blackthorn was chosen as an Offering.