The 2019 David Yale article prize was awarded to Ciara Kennefick for ‘‘The Contribution of Contemporary Mathematics to Contractual Fairness in Equity, 1751-1867’ in the Journal of Legal History 39 (2018), pp.  307-339. 

The prize committee said of this article:
 
Kennefick’s ‘The Contribution of Contemporary Mathematics to Contractual Fairness in Equity, 1751-1867’ is a genuinely novel re-examination of an important part of English legal history, highlighting the interaction between questions of law about contractual fairness, and mathematics. Interest in legal questions drove interest in the study of probability, while developments in the mathematics of probability came to resolve legal questions. The article changes the way we look at the history of this area of law.

Instituted in 1998, this biennial prize is awarded by the Selden Society for an outstanding contribution to the history of the law of England and Wales from scholars who have been engaged in research in the subject for not longer than about ten years.  Since 2017, separate prizes have been given for the best book and the best article published in the preceding two years. The prize is named in honour of Mr David Yale, QC, FBA, then President of the Society and formerly Literary Director.