フレデリックスバーグの戦い
The 139th was transferred in October 1862 to the VI Corps. In the Battle of Fredericksburg, it suffered minor casualties from artillery fire, but didn't get a chance to fight. Five months later, however, it did participate in the 2nd Battle of Fredericksburg. At the Battle of Gettysburg in July, it helped defend the left flank of the Union army.