Answer:
Horace Mann is most associated with education reform during the 19th century.
Step-by-step explanation:
Horace Mann was an American educator and abolitionist. Horace Mann played a role in creating schools for deaf and mute Americans.
As secretary of the Boston Teaching Commission in 1837, Mann worked tirelessly with all opposition from the educational and theological perspective, annually inspecting Massachusetts educational institutions, gathering teachers and citizens for his lectures, setting up pattern schools, compiling twelve annual reports on the school system, and publishing the journal "The common magazine".