After the Confederates abandoned <a href="https://en.wikipedia.org/wiki/Morris_Island" class="extiw" title="en:Morris Island">Morris Island</a> on Sept. 7, 1863, the Union occupied Battery Gregg (also known as the "Cummings Point Battery") pictured here and referred to it as "Battery Chatfield"
Unknown author<span style="display: none;">Unknown author</span>
<ul><li><i><a rel="nofollow" class="external text" href="https://archive.org/stream/photographichist05mill#page/117/mode/1up">The Photographic History of The Civil War in Ten Volumes: Volume Five, Forts and Artillery</a></i>. The Review of Reviews Co., New York. 1911. p. 117.</li></ul>