Authors:

In the early days of the crash it was widely believed that Jesse L. Livermore, a Bostonian with a large and unquestionably exaggerated reputation for bear operations, leading a syndicate that was driving the market down.

"The Great Crash, 1929". Book by John Kenneth Galbraith. Chapter VIII, "Aftermath I," Section III, p. 141, 1954.
In the early days of the crash it was widely believed that Jesse L. Livermore, a Bostonian with a large and unquestionably exaggerated reputation for bear operations, leading a syndicate that was driving the market down.