Born a year and a half apart, the young Harper and Truman both had active imaginations and distant mothers. Neither of them fit in especially well in a small Southern community.“Nelle was too rough for the girls, and Truman was scared of the boys, so he just tagged on to her and she was his protector,” a family friend, Charles Ray Skinner, recalled in “Mockingbird,” Charles J. Shields’s biography of Ms. Lee. When schoolyard bullies ganged up on Truman, who was small for his age, Nelle, who was younger, got in fistfights to protect him.