James H. Carleton to Edward R. S. Canby, June 15, 1862
HEADQUARTERS COLUMN FROM California, Tucson, Ariz., June 15, 1862, General E. R. S. CANBY,
GENERAL: I have the honor to inform you that I have advanced thus far from California with a force of regulars and volunteers sufficient in numbers to occupy this Territory. 1 have assumed to represent the U. S. authority, and for the time being have placed the Territory under martial law. Inclosed herewith please find a proclamation to this effect. I send this to you by express, that you may not go to the expense of sending troops from your department to occupy Arizona. I congratulate you on your success against the Confederate forces under Sibley. If you can send an escort to the expressman who takes this I shall feel greatly obliged. I am, general,
respectfully,
Colonel First California Volunteers, Commanding.
[Inclosure to C.]
To all whom it may concern:
Mexico and organized it into a Territory complete of itself. This is
kuown as the Territory of Arizona. It comprises within its limits all
the country eastward from the Colorado River, which is now occupied