Richd. C. Drum to Albemarle Cady, December 7, 1861

Lieut. Col. ALBEMARLE CADY, Seventh Regiment of Infantry, Comdg. District of Oregon, Fort Vancouver, Wash. Ter.: SIR: On the arrival of the two companies of the Ninth Regiment of Infantry at Fort Vancouver, the general commanding the department desires you to designate one of them to proceed to San Juan Island and relieve the artillery company stationed at Camp Pickett. The general desires the company selected for San Juan to be sent on the steamer leaving this port on the 17th instant. When relieved by the infantry company. Company D, Third Artillery, will, as the steamer returns, embark for San Francisco. On its arrival here it will take post at Alcatraz.

Very respectfully, your obedient servant,