Reorganized 23 November 1895 at Greeley as Company D. 1st infantry Regiment.
Mustered into Federal service 8 May 1898 at Camp Alva Adams, Denver, as Company D. 1st volunteer Infantry Regiment. (Home Guard Company D. 1st Infantry Regiment organized February 1899 at Greely)
Mustered out of Federal service 8 September 1899 at San Francisco, California and consolidated with Home Guard company D. 1st Infantry Regiment Colorado National guard.
Relieved from the 45th division and redesignated Headquarters Company 2nd Battalion, 157th Infantry Regiment 10 may 1946.
Converted, reorganized and redesignated Headquarters and Headquarters Battery 142nd Field Artillery Battalion, 1 August 1955 ; concurrently remainder of battalion organized from existing units as follows.
Company K. 157th Infantry Regiment at Fort Morgan redesignated Battery A.
Company L. 157th Infantry Regiment at Sterling redesignated Battery B.
Company C. 157th Infantry Regiment at Brush redesignated Battery C.
Company E. 157th Infantry Regiment at Greeley redesignated Service Battery.
Battalion broken up 1 February 1959 and elements reorganized or consolidated as follows.
Headquarters and Headquarters Battery and Service Battery at Greeley consolidated, reorganized and redesignated Company A. 140th Signal Battalion
Battery A. at Fort Morgan redesignated Service Battery 1st Howitzer Battalion 157th Field Artillery
Batteries B, and C, at Sterling consolidated, reorganized and redesignated Battery B. 1st howitzer Battalion 157th Field Artillery
Per fess embattled or and gules, in chief two wigwams of the second, garnished of the first and in base a sea lion brandishing a sword in dexter paw of the last
Crest
That for the regiments and separate battalions of the Colorado National guard
Background
The shield is that of the coat of arms of the 157th Infantry with the colors reversed to indicate descent from that regiment. The colors scarlet and yellow are used for artillery. These colors are also the Spanish colors and with embattled partition line and the Philippine sea lion refer to the walled city of Manila in the Philippine Islands. The wigwams refer to Indian service in the frontier days.