The story deals with the life of T. S. Garp. His mother, Jenny Fields, is a strong-willed nurse who wants a child but not a husband. She encounters a dying ball turret gunner known only as Technical Sergeant Garp who was severely brain damaged in combat. Jenny nurses Garp, observing his infantile state and almost perpetual autonomic sexual arousal. As a matter of practicality and kindness in making his passing as comfortable as possible and reducing his agitation, she manually gratifies him several times. Unconstrained by convention and driven by practicality and her desire for a child, Jenny uses Garp's sexual response to impregnate herself, and names the resulting son "T. S." (a name derived from "Technical Sergeant," but consisting of just initials). Jenny raises young Garp alone, taking a position at the all-boys school Steering School in New England