The Calvert Educational Program was a primary middle school in the early 1900's that was overseen by a Harvard taught educational facilities adviser named Virgil Hillyer. Even though there were multitudes of schools being run in those days, the Calvert Educational Program is one of the only schools that are seen and discussed when the topic of Homeschooling arises. What did Calvert do differently and how did a weekday school settle into part of thousands of homeschooling dads' discussions to this day?