References:
Dyer's Compendium of the War of the Rebellion, 1908 Edition

1st REGIMENT HEAVY ARTILLERY (AFRICAN DESCENT)

Organized at New Berne and Morehead City, N. C., March, 1864. Attached to District of New Berne, N. C., Dept. Virginia and North Carolina, to February, 1865. District of New Berne, N. C., Dept. of North Carolina, to March, 1865.

SERVICE.--Garrison duty at New Berne, N. C., and other points in District and Dept. of North Carolina, till March, 1865. Designation of Regiment changed to 14th U.S. Colored Heavy Artillery, March 17, 1865 (which see).