Rhode Island units activated pursuant to call of the President of the United States for a mobilization of auxiliary troops dated June 18, 1916. Upon order received June 19, Battery of Field Artillery recalled from training exercises scheduled for Tobyhanna, PA & returned to Rhode Island. Three troops of Cavalry & Ambulance Company # 1 were also detailed to Quonset Point at North Kingstown with an additional Cavalry troop organized from the ranks existing units. Recruiting offices were established at the Mounted & Cranston Street Armories in Providence. New enlistments for Battery of Artillery were conducted in camp at Quonset Point. Assembled units mustered into United States service during the last week of June by Captain Thomas A. Roberts, United State Cavalry. Recruit physical examinations were conducted by Major William A. Powers, US Army Medical Corps and assisted by Major Augustus. W. Calder & Captain Marcius H. Merchant, Medical Corps, Rhode Island National Guard. Upon mobilization Cavalry Troops A, B, C & M & Ambulance Co. #1 detailed to Camp Fort Bliss at El Paso, TX where they were confined to routine camp duties during entire term. Final muster roll does not indicate area of deployment for Battery of Artillery. It is assumed the unit remained in Rhode Island until mustered out November 2, 1916. Remaining units discharged October 17 through November 6, 1916. Author: Kenneth S. Carlson
Scope and Contents: Records of Battery A, Field Artillery, Ambulance Company, Quartermaster & Medical Corps & HQ, Troops A, B, C & M, Cavalry Squadron in United States service during war with Mexica, June 24 - October 16, 1916.. Includes oaths of enlistment, muster – in / pay rolls, muster - out rolls, desertions & discharges.