 Initially they took over all of the Pacific Squadron's on-shore military and garrison duties and the Mormon Battalion and California Battalion's garrison duties.The New York Volunteer companies were deployed from San Francisco in Alta California to La Paz, Mexico in Baja California.The ship "Isabella" sailed from Philadelphia on 16 August 1847, with a detachment of one hundred soldiers, and arrived in California on 18 February 1848, the following year, at about the same time that the ship "Sweden" arrived with another detachment of soldiers.