From the record
“Hall, located at 613-615 Iowa Avenue in the original commercial block of Dunlap, Harrison County, Iowa, is an historic two-story pedimented red-brick building built for local members of the Independent Order of Odd Fellows. Also known as the Odd Fellows Hall, it was used by Golden Rule Lodge No. 178, IOOF founded in 1869 and Guiding Star Encampment No. 68, IOOF, a higher body founded in 1874.”
Wikipedia article I.O.O.F. Hall (Dunlap, Iowa), CC BY-SA 4.0.
One of 13 National Register listings published here for Harrison County · listed in 2011 · category: Building.
Sources: the Wikipedia article · the case file at the National Archives · the National Register database, National Park Service · the Wikipedia article