BENJAMIN BUTLER was the former general, JOHN BINGHAM was the Ohio Representative. These 2 were part of the committee of 7 managers from the house which met in the Senate for PRESIDENT JOHNSON'S IMPEACHMENT on March 5, 1868.
(1) Benjamin Butler (1818-1893).
(2) Ohio Representative John Bingham (1815-1900).
(3) When named one of the Managers to argue the case for impeaching Andrew Johnson, Bingham balked when Butler was to be chairman of the managers. The impasse was resolved by naming Bingham Chairman. Source
William H. Rehnquist, Grand Inquests: The Historic Impeachment of Justice Samuel Chase and President Andrew Johnson. (New York: William Morrow and Company, 1992), pp. 218-219. https://thereconstructionera.com/the-house-managers-prosecuting-the-johnson-impeachment/