1864, Oregon. Legislative Assembly. House of Representatives
[…] at San Francisco it is warehoused and reshipped to Liverpool, or other foreign market; and in exchange for this wheat, comes back the merchandise which has to pass through all these shipments, reshipments, warehousings, handlings, &c.
Source: wiktionary
Warehousing was vital in a time when storms, poor harvests and wars made supplies unreliable.