DeLancey M. Ellis

DeLancey M. Ellis was an American writer and compiler associated with New York State's exposition work in the early 1900s. He is credited with preparing New York at the Louisiana Purchase Exposition, St. Louis 1904: Report of the New York State Commission, a substantial account of New York's participation in the famous world's fair.

Archival records also connect him with the Lewis and Clark Exposition Commission of the State of New York, where he is identified as an executive officer in a 1905 letter. Together, those records suggest that Ellis worked closely with the planning, reporting, and public presentation of New York's exhibit efforts during a period when world fairs were important showcases of culture, industry, and civic ambition.

Little biographical information about his broader life is easy to confirm from widely available sources, but his published report has kept his name in circulation. For listeners interested in exhibitions, state history, or the spirit of the Progressive Era, Ellis's work offers a practical, firsthand record of how a major public project was organized and remembered.