Authors of the book 'Wyatt Earp The Lost Photograph and the Disturbing Truth' reached out to historians to authenticate the long-lost portrait.

Wyatt Earp portrait with Manitowoc ties is indeed of the notorious lawman, experts say Experts, according to the book, looked at things such as facial features to authentic the photo.

Wyatt Earp gains public acclaim for his involvement in catching an officer's wagon thief, the same crime he had been accused of years earlier in Arkansas.

Written by the contemporary Earp’s late wife and award-winning playwright Terry Tafoya Earp, "Wyatt Earp: A Life on the Frontier" is set in the historical Earp’s apartment in Los Angeles.