... [in] the afternoon the flag was raised upon Presidet Youngs House for a signal to gather together. All armed Men and many hundreds gather together and formed an Encampment in President Youngs yard & Premises, also in D. H. Wells Premises. Some 700 men stood guard through the night. This was in Consequence of the report that Gov Harding, & Judge Wait & Drake had issued a warrant to arest Brigham Young for Poligamy & had put it into Col Cornor's Hands to serve the writ through military force and the Citizens were resolved it should not be done.
[Source: Wilford Woodruff's Journal: 1833-1898 Typescript, Volumes 1-9, Edited by Scott G. Kenney, Signature Books 1993, http://amzn.to/newmormonstudies]