In this Aug. 6, 2019 photo provided by David Leaning Samuel Clemens' signature is seen inside the Mark Twain Cave in Hannibal, Mo., Clemens' boyhood home.

HANNIBAL, Mo. — Mark Twain made this cave famous through his writings, and speculation swirled for decades that he’d signed his name somewhere inside it. This week, the owners of the cave can ...

As a child, Twain went by the name of Samuel Clemens. He lived in Hannibal from 1839 to 1853. The signature was found in July but wasn't verified by scholars until now.

Samuel Clemens’ signature is seen inside the Mark Twain Cave in Hannibal, Mo., Clemens’ boyhood home. Experts say it is almost certainly an authentic signature made by Clemens during ...

In winter 1819, a natural entrance to a cave was found just south of Hannibal, Mo. One of its visitors in the early 1840s was a young resident who was fascinated by what he saw.

Clemens lived in Hannibal for most his childhood, from 1839 to 1853. Back then, the cave, first discovered in 1819 and containing three miles of passageways, was known as McDowell’s cave.

A pair of Mark Twain enthusiasts who have searched for more than two decades say they’ve found what appears to be Samuel Clemens’ signature from his youth scrawled on the wall of the Missouri ...

The caves were an inspiration for his work The Adventures of Tom Sawyer. (Zack Kucharski/The Gazette) A look at one of the 260 passageways that comprise the Mark Twain cave in Hannibal, Mo., in 1946.

HANNIBAL, Mo. — Michael Biehn signed his name inside Mark Twain Cave on Friday, marking a historic moment before his appearance at the 2022 Big River Comic Con.

In this Aug. 6, 2019 photo provided by David Leaning Samuel Clemens' signature is seen inside the Mark Twain Cave in Hannibal, Mo., Clemens' boyhood home.

Mark Twain made this cave famous through his writings, and speculation swirled for decades that he’d signed his name somewhere inside it. This week, the owners of the cave can finally confirm ...