William C. Kashatus is a Quaker historian, educator, and author. A product of and former teacher in Philadelphia's Friends Schools, Kashatus graduated Phi Beta Kappa from Earlham College. He earned a master's degree in history from Brown University and a doctorate from the University of Pennsylvania. His published works include William Still: The Underground Railroad and the Angel at Philadelphia (2021); Abraham Lincoln, the Quakers and the Civil War (2014); A Virtuous Education: William Penn's Vision for Philadelphia's Schools (1997); and Conflict of Conviction: A Reappraisal of Quaker Involvement in the American Revolution (1990).