Early in the morning G. A. Smith & myself was Called upon to go to the Governors office as an expressed had arived from the Enemy. ... Brother Carrington read a Proclamation from A Cumming. Called himself Govornor of Utah & said that the President Appointed him Govornor of Utah but did not say what Presidet appointed him whether it was Presidet Young or Buchannan. He Commands all armed people to dispersed to their Homes & said all that opposed them would be treated as traitors.
He also wrote a Letter to Governor Young accusing him of treason & said that He should Esstablish his quarters in Green river County & organize a temporary Government that all will be tried for treason that oppose them.
[Source: Wilford Woodruff's Journal: 1833-1898 Typescript, Volumes 1-9, Edited by Scott G. Kenney, Signature Books 1993, http://amzn.to/newmormonstudies]