This primary source comes from the Records of the Office of the Chief Signal Officer.
National Archives Identifier:
531106Full Citation: 'Skating party, Ft. Keogh, Mont., about 1890.'; 1890; Records of the Office of the Chief Signal Officer, Record Group 111. [Online Version, https://www.docsteach.org/documents/document/skating-party-ft-keogh-mont-about-1890, May 9, 2024]