A. N. Towne to CPH, Jan. 24, 1876, CPH Papers, ser. 1, r. 9.

For other bad winters, Towne to CPH, Jan. 26, Feb. 7, 1876, CPH Papers, ser. 1, r. 9, Towne to CPH, Dec. 18, 1877, CPH Papers, ser. 1, r. 13.

Towne to CPH, Jan. 17, 1878, Feb. 26, 1878, CPH Papers, ser. 1, r. 14.