The Thirteenth Infantry Regiment, of Scranton and vicinity, was broken up and its officers and men turned into the First to bring the companies up to the required strength. In the same manner, the Third, of Philadelphia, was consolidated with the Tenth; the Eighth, from Harrisburg and vicinity, with the Sixteenth, and the Sixth, from Philadelphia and surrounding counties, with the Eighteenth.
The former First and Thirteenth became the 109th Infantry, in the new designations; the former Third and Tenth, the 110th; the former Sixth and Eighteenth, the 111th, and the former Eighth and Sixteenth, the 112th.
The former First Artillery, whose batteries were distributed through the state from Pittsburgh to Phoenixville, became the 107th Field Artillery; the historic old Second Infantry, transformed into the Second Artillery during the border duty, whose home station is Philadelphia, became the 108th Field Artillery. The Third Artillery, which had been formed from the former Ninth Infantry, of Wilkes-Barre and the surrounding anthracite towns, became the 109th Field Artillery.
The cavalry regiment disappeared. One troop, from Sunbury, remained cavalry, being attached to division headquarters as Headquarters Troop. The rest were scattered through different organizations. The 103d Trench Mortar Battery was formed almost entirely from among the cavalrymen, largely members of the famous old First City Troop of Philadelphia.
The engineer regiment became the 103d Engineers, the signal troops the 103d Field Signal Battalion, and the field hospitals and ambulance companies became parts of the 103d Sanitary Train. In addition, there were formed the 103d Military Police, the 103d Ammunition Train, the 103d Supply Train, and the 107th, 108th and 109th Machine Gun battalions.
The 109th and 110th Infantry regiments were brigaded together under the designation of the 55th Infantry Brigade. The 111th and 112th regiments became the 56th Infantry Brigade and the three artillery regiments and the trench mortar battery became the 53d Artillery Brigade.
There were other Pennsylvanians--many thousands of them--in the war, but no other organization so represented every locality and every stratum of society.