Birthdays
Alfred Horatio Belo
Turns 24 on this date
Amelia Jenks Bloomer
Turns 45 on this date
John Neff Coombs
Turns 40 on this date
John Gray Foster
Turns 40 on this date
Robert Frederick Hoke
Turns 26 on this date
Julia Ward Howe
Turns 44 on this date
Richard Watson Humphriss
Turns 27 on this date
Edwin Gray Lee
Turns 27 on this date
Events
| Crime/Disasters | A well-behaved mob lynches a horse thief and murderer in the town square in Kokomo, Indiana | 05/27/1863 |
| Battles/Soldiers | African-American troops perform well in the abortive attack on Port Hudson and earn wide praise | 05/27/1863 |
| Battles/Soldiers | Afro-Creole Captain Andre Cailloux falls at the head of his troops in the attack on Port Hudson | 05/27/1863 |
| Crime/Disasters | Confederate naval vessel explodes on the Chattahoochie River, killing eighteen of its crew | 05/27/1863 |
| Battles/Soldiers | In Louisiana, Confederate defenders of Port Hudson beat back an all-out Union assault | 05/27/1863 |
| Battles/Soldiers | In Mississippi, the Siege of Vicksburg continues |
05/26/1863 to 07/03/1863 |
| Education/Culture | In New York City, "General Butler" defeats "George M. Patchen" in a harness racing series worth $5000 | 05/27/1863 |
| Battles/Soldiers | Off Vicksburg, the U.S.S. Cincinnati is sunk with heavy losses as six men win Medals of Honor | 05/27/1863 |
Documents
| Book | Recollection by Ulysses S. Grant, Siege of Vicksburg, May – July 4, 1863 |
05/25/1863 to 07/04/1863 |