July 6, 1876 newspaper article in <i>The Helena Independent</i> (newspaper in Helena, Montana, U.S.) describing the June 25, 1876 massacre of troops under <a href="https://en.wikipedia.org/wiki/George_Armstrong_Custer" class="extiw" title="w:George Armstrong Custer">w:George Armstrong Custer</a>.
<i>The Helena Independent</i> (newspaper)
<cite style="font-style:normal"> (<span class="mw-formatted-date" title="1876-07-06">July 6, 1876</span>). "<a rel="nofollow" class="external text" href="https://newspaperarchive.com/helena-independent-jul-06-1876-p-3/">Indian War / Gen. Gibbons Letter Relating to Terrible Massacre</a>". <i>The Helena Independent</i>: 3.</cite>