Blocher's Battery was created in the summer of 1862 during Major General Thomas C. Hindman's effort to rebuild Confederate forces in Arkansas.

The only organized batteries were actually in the Indian Territory (modern Oklahoma) supporting Brigadier General Albert Pike's forces.

[2] One of Hindman's first acts in command was to order Woodruff's Battery, also known as the Weaver Light Artillery, to return to Little Rock from the Indian Territory.

[8] Blocher's Battery served in the Trans-Mississippi Department throughout the war, and campaigned in Arkansas, Louisiana, Missouri and the Indian Territory.

Skirmishers here reported to me from Colonels [Joseph C.] Pleasants', [James P.] King's and [Alexander Travis] Hawthorn's Regiments, which I ordered to my front right and left at least 200 yards in advance of my battery.

At this time the line of battle was advancing across the field, evidently for the purpose of charging my battery, when I sent a messenger to Brigadier General Fagan to know whether I should remain where I was or retire further up the hill.

This messenger met you, and you ordered him to return immediately and order me to fire canister shot, when their advanced line, which was under cover of the hill and unseen by me until within twenty yards of my battery, opened fire, and advanced in solid mass in a run upon my battery, killing and wounding a large number of horses and men.

I attempted to limber to the right, with the intention of moving to the rear by the road on my right, but was unable to do so, owing to the enemy pressing me so closely and killing so many horses.

My thanks are due Captain [John G.] Marshall for lending me his forge, limber and horses to a disabled caisson from the field; to Lieutenants [James] Cook, [J.V.]

My thanks are also due Lieutenant J. Wesley Halliburton (First Arkansas Cavalry), who reported to me for duty before the engagement and rendered me valuable services.

[12][13]In the re-organization of the Army of the Trans-Mississippi following the Prairie Grove Campaign, in January, 1863, the battery was assigned to support Fagan's Brigade in Hindman's Division.

Blocher's battery was impeded by trees that Union soldier had felled along the roads and all approaches to the Federal positions and did not report any casualties from the battle.

Lieutenant Zimmerman led one section of Blocher's Battery to support Brigadier General Marmaduke's Cavalry Division.

[21] The battery, under the command of Lieutenant J. V. Zimmerman, participated with Dobbins' brigade in Price's Missouri Raid in September and October 1864:[22] The battery is mentioned in Union Army Reports of the Battle of Fort Davidson, also known as the Battle of Pilot Knob, on September 27, 1864:[23] Fagan's division had four brigades, under Generals Cabell and McCray and Colonels Dobbin and Slemons.

[25] William E. Woodruff, Jr, in his book, "With the Light Guns in '61-65' reports that Zimmerman's 7th Arkansas Field Battery and Marshall's 3rd Arkansas Field Battery were consolidated, under the command of Captain Zimmerman, before the end of the war and he indicates that the consolidated organization was in camp near Marshall, Texas, when the war ended.