45 to 64, and 24.9% who were 65 or older. The median age was 40 years. For every 100 females, there were 81.2 males. For every 100 females age 18 and over, there were 82.8 males. The median income for a household in the village was $20,694, and the median income for a family was $28,393. Males had a median income of $35,833 versus $18,125 for females. The per capita income for the village was $12,050. About 20.5% of families and 28.6% of the population were below the poverty line, including 43.8% of those under age 18 and 24.1% of those age 65 or over. The Cave Cave-in-Rock's primary feature is a striking riverside cave formed by wind and water erosion and by cataclysmic effects of the 1811–12 New Madrid earthquakes. The cave is located at , just upriver (east) from the village. The first European to come across it was M. de Lery of France, who found it in 1739 and called it "caverne dans Le Roc". Other names for the cave include Rock-In-Cave, Rocking Cave, Rock-and-Cave, House of Nature, The Cave, Big Cave, and Murrell's Cave. The cave is the main feature of Illinois' Cave-in-Rock State Park, established in 1929. History From the 1790s to the 1870s, the area around Cave-in-Rock was plagued by what historians as early as the 1830s referred to as the "Ancient Colony of Horse-Thieves, Counterfeiters and Robbers", and better known today due to Otto Rothert's history early in the 20th century as the "Outlaws of Cave-in-Rock". In 1790, counterfeiters Philip Alston and John Duff (or John McElduff) used the cave as some type of rendezvous, though details are scarce. Although folklore printed in 19th century histories failed to establish a prior connection between the two men, both had lived in the area of Natchez, Mississippi, at the start of the Revolutionary War. Duff was living upriver a few miles, either at Battery Rock or across the Ohio River at what would become Caseyville, Kentucky, when in 1797 Samuel Mason moved his base of operations from Diamond Island and Red Banks to the cave and made it the home of river pirates. Two of Mason's brothers had been business partners of Duff in Kaskaskia, Illinois, in the 1780s. Mason created a combination tavern, gambling den, brothel, and criminal refuge. His men lured in gullible river travelers and then robbed and killed them. James Wilson,