The town was named for Lucious Walter Long, the husband of Carrie M. Millerman, who had obtained a homestead in the Cheyenne-Arapaho Opening of April 19, 1892. The two married and made her homestead the town site. They donated on the north side of their property to the Union Real Estate and Townsite Company, while retaining the southern side themselves, which they divided into residential and commercial lots. The Longs wanted to name their new community Longview, but agreed to change to Longdale to avoid confusion with the already existing community of Fairview.