Birthdays
Augustus Carpenter Baldwin
Turns 49 on this date
Christopher Houston Carson
Turns 57 on this date
Charles Magill Conrad
Turns 62 on this date
Alexander Long
Turns 50 on this date
Henry A. Walke
Turns 58 on this date
Events
| Crime/Disasters | A Mississippi steamboat burns to the waterline at its dock in New Orleans, Louisiana | 12/24/1866 |
| Personal | Lieutenant Henry Wilson, only son of U.S. Senator Henry Wilson, dies at his station in Austin, Texas. | 12/24/1866 |
| Legal/Political | The second session of the 39th Congress is in a two-week holiday recess until January 4, 1867 |
12/20/1866 to 01/02/1867 |