Patricia O’Toole has written biographies of Theodore Roosevelt (When Trumpets Call) and Henry Adams (The Five of Hearts, which was a finalist for the Pulitzer Prize, the National Book Critics Circle Award, and the Los Angeles Times Book Prize). A former professor in the School of the Arts at Columbia University, she is a fellow of the Society of American Historians and a member of the Presidential Historical Commission at the New-York Historical Society. She lives in Camden, Maine.