The witness was Benjamin W. Vanderpoel, a lieutenant of the 59th NY Volunteers who was an acquaintance of Booth and claimed to have seen Booth and Company at a meeting at the Canterbury Music Hall, where a woman was dancing around and "flashing her legs" on the stage - this was testimony given at the 1867 John Surratt Trial and I'll be darned if I can remember the Defense!
"The Past is a foreign country...they do things differently there" - L. P. Hartley