The History's Forgotten Treasures exhibit exemplifies this combination of odd and no-longer-mundane. Meteorites and lightning-formed fulgurites are alongside an Abraham Lincoln campaign poster, a collection of teapots, a two-headed calf skull, and ancient Christian artifacts. It's both natural history and the odd bits of history that no longer make it into history books, hence forgotten.
The museum also captures the era in which the name Oklahoma conjured up images of lawless gangs and shootouts with the sheriff. The Gunfight at Ingalls is one example, commemorated at the museum. Having occurred only four miles northeast of the museum's present location, the gunfight was one of the deadliest gun battles in America. Three Marshalls and two bystanders died as a result of the battle. However, it also marked the beginning of the end for the Doolin-Dalton gang.
Cowboys, such as Billy McGinty, and the start of the Western Music are likewise remembered and displayed. The very first commercial Western, Oklahoma boys, band is often accredited to cowboy Billy McGinty, who sponsored the band. However, it was Otto Gray who took the cowboys touring and made Western music famous. The museum actually sits on the former homestead of Otto Gray's family includes much memorabilia from his family and the band tours.