I. E. Gates to CPH, Oct. 13, 1892, CPH Papers, ser. 1, r. 51.
CPH to Wm. Bonn, Jan. 20, 1893, CPH Papers, vol. 233, ser. 2, r. 33.
Tweed to Speyer & Co. to CPH, Sept. 22, Oct. 5, 1892, CPH Papers, ser. 1, r. 51.
Tweed to CPH Sept. 28, 29, 1892, CPH Papers, J. Speyer Ellisen to CPH, Nov. 11, 1892, CPH to W. Salomon, Sept. 29, 1892, CPH to I. E. Gates, Sept. 29, 1892, CPH to C. Tweed, Oct. 2, 1892, Gates to CPH, Oct. 13, 1892, all in CPH Papers, ser. 1, r. 51.