Kate Chase & William Sprague. The marriage ended in divorce in 1882. Before the divorce, Kate was accused of having an affair with the flamboyant and powerful New York Senator Roscoe Conkling. According to a well-known story, buttressed by contemporaneous press reports, Sprague confronted the philandering couple at Sprague's Rhode Island summer home and pursued Conkling with a shotgun and threatened to throw Kate out of a second story window.
Katherine Jane ("Kate") Chase Sprague (August 1840 – July was the daughter of Ohio politician Salmon P. Chase, Treasury Secretary during President Abraham Lincoln's first administration and later Chief Justice of the United States.