February 13, 1891
To the Heads of the Executive Departments:
In token of respect to the memory of Admiral David D. Porter, who died this morning, the President directs that the national flag be displayed at half-mast upon all public buildings throughout the United States until after his funeral shall have taken place, and that on the day of the funeral public business in the Departments at Washington be suspended.
E.W. HALFORD, Private Secretary .
Benjamin Harrison, Executive Order Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/205669