 The division arrived during the Battle of Mansfield on April 8, 1864, but was not committed to the battle and occupied a position on the flank of General Taylor's division.Brigadier General Churchill was placed in command of both his own division and Brigadier General Parson's Division during the pursuit of the enemy from Mansfield to Pleasant Hill, Louisiana, so Brigadier General Tappan assumed command of Churchill's Division.While Tappan commanded the Division, Colonel Grinstead assumed command of Tappan's Brigade and led it through the fight at Pleasant Hill, on April 9, 1864.