C. M. Ridler to Diedrich Willers Jr., discussing the advisability of securing the cooperation and support of the liberals, December 24, 1873; see also letter of G. Benjamin to Willers, January 14, 1874.

Letter from B. D. Naxon to Diedrich Willers Jr. concerning the loss which he feels many lumbermen in Oswego County have suffered since 1863 when the Oneida Lake Canal was closed, March 2, 1874; see also letter of Gideon J. Tucker to Willers, Jan 31, 1875.

Letter from William D. Van Buren to D. Willers Jr. warning him to be careful of Alonzo Cornell - "He is very cunning and shameless". April 30, 1874

Letter from H. P. Nichols to Diedrich Willers, Jr. concerning the approaching state convention of the Democratic Party, August 22, 1874; see also letter of D. Theodore Mierson to Willers, August 23, 1874; and from Calvin Willers to Diedrich Willers, Sr. explaining why Diedrich Willers Jr. did not attend the Democratic State Convention, September 20, 1874.

John Kelly to Diedrich Willers Jr. discussing the candidates who are being considered by the state legislature for the position of U.S. Senator from New York, January 12, 1875; see also letter from S. M. Shaw to Willers, November 13, 1874.

Letter from S. A. Bostwick to Willers Jr. stating that as near as he could discover, a certain Mr. Hough "…voted for Tilden and a part of our county ticket". December 2, 1874.

Letter from Diedrich Willers to J. F. Crampton, British Minister to the U. S., requesting Crampton's aid in securing a larger pension for Willers because of his action at the Battle of Waterloo with respect to the death of a French Colonel.