Commanding Officers
| Name | Date of Rank | Date of Commission |
| C. B. Crowninshield, Captain | June 14, 1861 | June 27, 1861 |
| E. B. Blake, First Lieutenant | June 14, 1861 | June 27, 1861 |
E. J. Curtis, County Judge of Trinity County, appointed Jeremiah Bennett as Inspector of a meeting being held in Weaverville, for the purpose of organizing a volunteer military company. On June 14, 1861, the company known as the Union Guard was duly organized and mustered into the State Service with Captain Crowninshield in command. On June 24, 1861, Captain Crowninshield filed with the County Judge a $ 500 penal Bond as security for the arms he had requested from the State. This company was never fully equipped, however, as a portion of the arms was lost during transportation to Weaverville when the barge carrying the equipment sank, in the Sacramento River. The lost arms were never recovered, although great effort was made to obtain them.
Incompleteness of the files prevents giving
a full history of this company's activities. Many of the old members
of the Union Guard left Weaverville, and Captain Crowninshield
tried unsuccessfully to fill their places with new men. When it
became apparent that the unit would be unable to keep its membership
up to the required standard, the remaining members on July 26,
1862, voted to disband.