This book is about those preachers whom John Wesley called his "Sons in the Gospel," their lives, their importance in the Methodist movement and their wider significance. It is about those who entered in Wesley's lifetime; they had begun their work by 1791. Because of their unity and dedication they had more effect than either of the Wesley brothers in the creation of the worldwide Methodist Church. This study analyses their lives and achievements. It provides new statistical information and brings to life the calling, travels, and everyday experience of individual preachers.