F. H. Davis to CPH, April 20, 1894, CPH Papers, ser. 1, r. 53.

CPH to Davis, April 25, 1894, CPH Papers, ser. 1, r. 53.

Davis to CPH, May 1, 1894, CPH Papers, ser. 1, r. 53.

F. H. Davis to CPH, May 3, 1894, CPH Papers, ser. 1, r. 53.