CPH to Hopkins, May 11, 1872. v. 2: 121, Box 20, Hopkins Collection.
Hyde to CPH, Oct. 10, 1872, LB, 2:274, box 1, f. 3, Hyde Papers.
Huntington originally proposed a $2 million bribe, but decided $1 million would suffice. He had good judgment in such things.
CPH to Hopkins, Sept. 14, 18, 1872, LB, 2:179, 175-79, both in box 20, Hopkins Collection.
CPH to Hopkins, July 18, 1876, LB, 9:57, box 24, Hopkins Collection.
David M. Jordan, Roscoe Conkling of New York: Voice in the Senate (Ithaca: Cornell Univ. Press, 1971), 413, 417.
Hopkins to CPH, Feb. 4, 1873, CPH Papers, ser. 1, r. 5.