In the chrysalids david never askes his father about the spider man from the Fringes Who do you guess he was?

Spiderman is the brother of Joseph Strorm . Spidermans' real name is Gordon Strorm. Gordon was sent to the Fringes because he was a mutant according to the religion of Waknuk. He had long arms and limbs which made him look like a spider. He is also the leader of the Fringes.