Sunflower Summers was a pre-War protester who was present in the area that later became known as the Divide.
She and the others with her were protesting against the United States military's decision to place nuclear weapons in the area. She had a personal meeting with local base commanders, possibly including General Martin Retslaf from the Hopeville silo. Nevertheless, her skeleton can be found in the Cave of the Abaddon, next to her diary (in a suitcase) and Seymour. She is either highly gullible or foolishly optimistic, believing that Retslaf's ominously-worded promise that the military was preparing "something special" for them was going to be a full nuclear disarmament.