Citation Hunt

The Wikipedia snippet below is not backed by a reliable source. Can you find one?

Click I got this! to go to Wikipedia and fix the snippet, or Next! to see another one. Good luck!

In page Sidney Rigdon:

"

The theory that Sidney Rigdon was the true author of the Book of Mormon first appeared in print in an August 31, 1831, article by James Gordon Bennett, who had visited Palmyra/Manchester area and interviewed several residents.[1] The theory of Rigdon's use of a Spalding manuscript first appeared in print in the 1834 book Mormonism Unvailed. The theory also later appeared in 1867 in Origin, Rise, and Progress of Mormonism by Pomeroy Tucker in which he says Smith was visited by a "mysterious stranger" as early as 1827, who Tucker implies played a role in the creation of the Book of Mormon and later identifies the stranger as Rigdon.[2]