Katherine Barlow was Green Lake's school teacher. She made the best spiced peaches in Texas. The children loved Miss Katherine, as did the men she taught. Barlow had a friendship with the black onion picker, Sam; they'd often exchange a jar of peaches for a bag of onions, respectively.
One day, when Sam went to go deliver some onions to her, he noticed the leaking roof of the schoolhouse. He told her he'd fix it for her in exchange for three jars of peaches. Every time he fixed one thing, Miss Katherine would find another thing for him to fix because she liked his company. This made them develop a relationship together, and they discovered mutual affection. One day, she and Sam were discovered kissing each other. This was not allowed in the town at the time, due to the racism in the South.
I can fix that
Sam was going to be lynched for this crime, so Barlow tried to reason with the drunk sheriff. He did nothing to appease the situation, and even asked her to kiss him in exchange for Sam's life, which she refused.
Miss Katherine insisted that he go across the lake, leaving Mary Lou behind. Katherine came with him and Trout shot him, Katherine was rescued unwillingly. She was so mournful and mad at his death, that the next day, she shot the sheriff and giving him the kiss he had asked for, leaving a red lipstick mark.
Barlow became an infamous outlaw, killing multiple men and leaving a kiss on their cheek. She robbed numerous banks in Texas and several individuals including Stanley's ancestor, Stanley Yelnats I.
Many years later, Barlow returns to the lake and had been living in a cabin for 3 months when Trout and Linda Walker (Katherine's student) came and threatened to kill her. A yellow spotted lizard suddenly darts out from inside the upturned boat. Trout and Linda both try to shoot it but miss. The lizard then lands on Barlow's ankle and bites her. Barlow dies laughing.