#OnThisDay 1863 during the Siege of Vicksburg, Donegal man, Menomen O’Donnell performed actions that would lead to him receiving the Medal of Honor, while serving with Company A, 11th Missouri Infantry, in action at Vicksburg, Mississippi. First Lieutenant O’Donnell voluntarily joined the colour guard in the assault on the enemy’s works when he saw indications of wavering and caused the colours of his regiment to be planted on the parapet.
This combined with a later action as the only mounted officer in a Union attack on Confederate lines in Louisiana saw O’Donnell receive this award.

