John L. Alexander

John L. Alexander (1878–1932) wrote about youth work, religion, and education at a time when churches were paying closer attention to the needs of adolescents. In The Boy and the Sunday School, he is identified as Superintendent of the Secondary Division of the International Sunday-School Association, and the book presents his interest in leadership, organization, and the challenges of the teen years.

His writing is direct and practical rather than abstract. Alongside The Boy and the Sunday School, he is credited there with works including Boy Training, The Sunday School and the Teens, Boys' HandBook, Boy Scouts of America, and Sex Instruction for Boys, suggesting a career centered on helping adults teach, mentor, and organize for young people.

Reliable biographical details about his personal life are limited in the sources I could confirm, so this overview stays close to his published work and professional role. What comes through clearly is a writer deeply concerned with how adults could reach boys more effectively and shape youth programs with purpose and care.