1st
U.S. ARTILLERY Co. A 
1st
U.S. ARTILLERY Co. A 
Stationed at Fort Monroe, Virginia,
January, 1861
Fort Pickens and Pensacola, Florida, Department
of the South, June, 1861 to September, 1862
Defense of New Orleans, Department of the Gulf,
to February, 1863
Artillery, 1st Division, 19th Army Corps, Department
of the Gulf, August, 1863
Defense of New Orleans, Louisiana to January,
1864
Artillery, 1st Div., 19th Army Corps, Department
of the Gulf to August, 1864
Defense of Washington D.C., Artillery, 22nd Army
Corps. to September, 1865
Embarked on the steamer "Brooklyn"
for Fort Pickens, Florida, January 24, 1861
Arrived at Pensacola Harbor
on February 6 1861
Garrison duty at Fort Pickens until May, 1861
Action on Santa Rosa Island October 9,1861
Bombardment of Forts McRae and Barrancas, Pensacola
Harbor, November 22-23, 1861 and January 1, 1862
Moved to Pensacola on May 13, 1862 and duty there
until August
Moved to New Orleans, Louisiana August 30 - September
3, 1862 and duty in the defense of that city until January 1863
Expedition up the Bayou Teche January 11-18, 1863
Engagement with the steamer "Cotton"
on January 14, 1863
Moved to Baton Rouge, Louisiana
Expedition against Port Hudson March 7 - 27, 1863
Operations in Western Louisiana, April 9 - May
14, 1863
Teche Campaign April 11- 20, 1863
Fort Bisland, near Centerville, April 12 - 13,
1863
Jeanaette on April 14, 1863
Vermillion Bayou on April 17, 1863
Expedition to Alexandria and Simsport on May 5
-16
Moved to Port Hudson on May 18 -23, 1863
Siege of Port Hudson May 24 - June 9, 1863
Assaults on Port Hudson May 27 and June 14, 1863
Surrender of Port Hudson on July 9, 1863
Moved to Donaldsonville July 13, thence to Baton
Rouge, Louisiana, on August 2, 1863
Sabrine Pass (Texas) Expedition September 2 -12,
1863
Duty at New Orleans, Louisiana until January 1864
Expedition to Madisonville, Louisiana January
3, 1864
Garrison duty at New Orleans until July 1864
Moved to New York, July 27- August 3, 1864, thence
to Washington, D.C.
Consolidated with Battery "F"1st U.S.
Artillery and remounted
Duty in the Defenses of Washington, D.C. in the
22nd Corps until September, 1865, when resumed separate organization