First Regiment Connecticut Heavy Artillery
This undated image detail shows the First Regiment Connecticut Heavy Artillery, at Fort Richardson in Arlington, Virginia.
The First Heavy Artillery was formed in the spring of 1861 as the Fourth Volunteer Infantry. In January, 1862, the regiment was converted into a heavy artillery unit.
At Fort Richardson, the regiment participated in the defense of Washington, D.C.
When the Peninsula Campaign began in March of 1862, the First CT was deployed and participated in several engagements. The regiment returned to the defense of Washington and later was involved in fighting near Fort Fisher, N.C., as well as the sieges of Petersburg and Richmond.
The unit mustered out in September, 1865, after more than four years of service.
The full image, in a variety of resolutions, can be viewed at the Library of Congress.