The following data is extracted from A History of the Pioneer Families of Missouri - Montgomery County.
Enoch Spry came to Missouri from Clark County, Kentucky, with Simon Griggs and Cornelius Howard, when he was fifteen years of age. He married Mary A Logan, the only sister of William, Alexander, Hugh and Henry Logan, and settled in Montgomery County in 1817. They had eight children. Soon after steamboats began to navigate the Missouri river, Mr. Spry, happening to be in the vicinity of the river one day, heard a boat blow its whistle, at which lie became very much frightened, and ran home. He told his neighbors that a panther had caught a man down on the river, and he never heard any one halloo like he did. His story created so much excitement that a company was organized and went in pursuit of the “panther," which, of course, they did not find.
Source: A History of the Pioneer Families of Missouri - Montgomery County