 Complete the following phrase:  In April, 1864, the battery was assigned to support the Brigadier General William Lewis Cabells cavalry brigade of General Fagans Cavalry Division. The unit participated in the Camden Expedition in the spring of 1864. Lieutet Zimmerman led one section of Blochers Battery to support Brigadier General Marmadukes Cavalry Division. Zimmermans section of Blochers Battery participated in the Battle of Elkins Ferry on April 3, 1864. The battery was involved in the fighting at the 