I would like to thank my colleagues who generously provided me with information on Helen Morris Hadley and Arthur Hadley. And thanks to the SHOE-list for making these kinds of exchanges possible. Regards, Harro Maas -- Professor/Centre Walras-Pareto for the history of economic and political science <https://www.unil.ch/cwp/fr/home.html>/IEP/Bâtiment Geopolis - Université de Lausanne/1015 Lausanne (Suisse)/Bureau 5224/Tel: +41 (0) 21 692 28 41/Fax: +41 (0) 21 692 18 45/email: [log in to unmask] website <https://applicationspub.unil.ch/interpub/noauth/php/Un/UnPers.php?PerNum=1167099&LanCode=37> *Editor Cambridge Series Historical Perspectives on Modern Economics <https://www.cambridge.org/core/series/historical-perspectives-on-modern-economics/3794DF9E124E93004DA7BB707F127671>* *affiliate member STS-Lab University of Lausanne <http://www.unil.ch/stslab/home.html>* *SNSF project: Moral Accounting Matters <https://wp.unil.ch/moral-accounting/en/>*