Robert K. Greenleaf published two posthumous essay collections (available at Greenleaf.org). Today scores of colleges and universities include Servant Leadership in their curricula and hundreds of companies embrace Greenleaf's philosophy. As Greenleaf strived to serve through education, he became the leader of a movement. Bass, B. M., and Stogdill, R. M. (1990). "Bass & Stogdill's Handbook of Leadership: Theory, Research, and Managerial Applications" (3rd ed.). New York:Free Press. Frick, Don M. (2004)." Robert K. Greenleaf: A Life of Servant Leadership." San Francisco: Berrett-Koehler Publishers. Greenleaf, R.K. (2003). "The Servant-Leader Within: a Transformative Path" New York: Paulist Press. Greenleaf, R. K. (2002). "Servant Leadership:
Robert Greenleaf Leavitt two sons, Robert and Russell, both of whom attended Harvard College. Dr. Leavitt and his second wife Ida Ruggli had two daughters, Rosamund, who died in infancy, and Constance. Following his service as a high school teacher in New Jersey, Robert Greenleaf Leavitt retired to his farm in Maine, where he raised 40 varieties of apples. Robert Greenleaf Leavitt Dr. Robert Greenleaf Leavitt (1865–1942) was an early American Harvard-educated botanist and widely published author in the field of botany, as well as an early college and high school educator in the natural sciences. Leavitt also worked for nine years as