Knupfer, Peter B. (May 2019). "How to Write a History Textbook: The Willard-Willson Debate over History Education in the Common School Era". History of Education Quarterly. 59 (2): 257–287. doi:10.1017/heq.2019.6. S2CID150916115.
Balmforth, Mark E. (November 2019). "A Nation of Ink and Paint: Map Drawing and Geographic Pedagogy in the American Ceylon Mission". History of Education Quarterly. 59 (4): 468–500. doi:10.1017/heq.2019.40. S2CID212860728.
netstate.com
"Emma Hart Willard – People of Connecticut." 50 States – Capitals, Maps, Geography, State Symbols, State Facts, Songs, History, Famous People from NETSTATE.COM. http://www.netstate.com/states/peop/people/ct_ehw.htm
semanticscholar.org
api.semanticscholar.org
Knupfer, Peter B. (May 2019). "How to Write a History Textbook: The Willard-Willson Debate over History Education in the Common School Era". History of Education Quarterly. 59 (2): 257–287. doi:10.1017/heq.2019.6. S2CID150916115.
Balmforth, Mark E. (November 2019). "A Nation of Ink and Paint: Map Drawing and Geographic Pedagogy in the American Ceylon Mission". History of Education Quarterly. 59 (4): 468–500. doi:10.1017/heq.2019.40. S2CID212860728.