Here are portraits of American life during the Great Depression and after, populated by a hopelessly hopeful chorus girl, a munitions manufacturer ensnared in a love triangle, a rural family that deals “justice” on its children, an overconfident mob dandy, a poor couple who quarrel to vanquish despair, a young “spinster” enthralled by the impulse of rebellion, and, in “The Magic Tower,” a passionate artist and his wife whose youth and optimism are not enough to protect their “dream marriage.” This new volume gathers some of Williams’s most exuberant early work and includes one-acts that he would later expand to powerful full-length dramas: “The Pretty Trap,” a cheerful take on The Glass Menagerie, and “Interior: Panic,” a stunning precursor to A Streetcar Named Desire.