While at the Newburgh (NY) cantonment, General George Washington corresponded with the Marquis de Lafayette. Lafayette was on leave from the army working in Europe to represent American interests. In a letter dated December 4, 1782, Lafayette asked Washington to “favorably endorse his conduct” in writing to Congress. Washington complied with Lafayette’s request in this letter, dated March 23, 1783. Shortly thereafter Congress passed a resolution of approval and thanks for Lafayette’s services.
National Archives, Records of the Continental and Confederation Congresses and the Constitutional Convention