June 18, 1866
DEPARTMENT OF STATE
The President directs the undersigned to perform the painful duty of announcing to the people of the United States that Lewis Cass, distinguished not more by faithful service in varied public trusts than by exalted patriotism at a recent period of political disorder, departed this life at 4 o'clock yesterday morning. The several Executive Departments of the Government will cause appropriate honors to be rendered to the memory of the deceased at home and abroad wherever the national name and authority are acknowledged.
WILLIAM H. SEWARD.
Andrew Johnson, Executive Order Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/202567