What menmonite school teacher greatly influenced amertican schools?

While there wasn't one single Mennonite school teacher who had a singular, widespread influence on American schools in the way that, say, John Dewey did, the Mennonite emphasis on practical education, community involvement, and peace education has subtly but significantly impacted American educational thought and practice.

It's difficult to pinpoint an individual because Mennonite educational practices were often developed and disseminated within their own communities and schools, rather than through a single prominent figure publishing widely or leading national reform efforts. Their influence is more a matter of a collective ethos.

To be clear, there's no equivalent of a "Mennonite Dewey." The influence is more a matter of their values shaping some aspects of progressive education and alternative schooling movements.