And so it happened that when Clara Barton was fifteen years old she followed in the footsteps of her brother and sisters and became a teacher. As soon as she decided to take the step, she was given District School No. 9, up in "Texas village," and in May, 1836, "after passing the teachers' examination with a mark of 'excellent,' she put down her skirts and put up her hair and walked to the little schoolhouse, to face and address her forty scholars." That was one of the most awful moments of her life. When the rows of pupils were ranged before her, and she was supposed to open the exercises by reading from the Bible, she could not find her voice, and her hand trembled so visibly that she was afraid to turn the pages and so disclose her panic. But no one knew. With perfect outward calmness, she kept her eyes on the open book until her pulse beat less fast, then she looked straight ahead and in a steady voice asked them to each read a verse in turn. This was a new and delightful plan to her pupils, who were still more pleased when the reading was over to have the new teacher question them in a friendly way about the meaning of the verses they had just read in the "Sermon on the Mount." That first day proved her marked ability as a teacher, and so kindly and intimate was she with her scholars that they became more her comrades than her pupils. When the four rough boys of the school "tried her out" to see how much she could endure, to their astonishment, instead of being able to lock her out of the building as they had done with the previous teacher, she showed such pluck and physical strength that their respect was won and kept. After that, almost daily, at recess time she would join them in games such as no teacher had ever played with them before. And with her success Clara gained a new assurance and a less shy manner, although she never entirely lost her self-consciousness. So successful was she with that first school that it was the preface to sixteen years of continuous teaching, winter and summer. Her two most interesting experiences as a teacher were in North Oxford and in Bordentown, New Jersey. North Oxford was the mill village where her brother's factories were, and where there were hundreds of children. When her popularity as the teacher in No. 9, Texas village, spread to North Oxford, she was asked to go there to start a school for operatives. This was a piece of work to her liking, and for ten years she says: "I stood with them in the crowded school-room summer and winter, without change or relaxation. I saw my little lisping boys become overseers, and my stalwart overseers become business men and themselves owners of mills. My little girls grew to be teachers and mothers of families." Here was satisfying work for the busy brain and active body! But even that did not take up all of her time; she found long hours in which to read and study, and also acted as Stephen's bookkeeper in the mill, during those years in North Oxford.