How did sir george yeardley help the Jamestown settlers?

The shipwreck survivors found the colonists of Jamestown in desperate condition. Most of the settlers had died from sickness or starvation, or had been killed by Indians. Sir Thomas Gates agreed with the Jamestown settlers to abandon the colony and return to England. He ordered Captain Yeardley to command his soldiers to guard the town preventing settlers from setting fire to the structures that were evacuated. Lord de la Warr soon arrived bringing supplies to save the struggling colony. Captain Yeardley was co-commander of the early Forts Henry and Charles at Kecoughtan. In October 1610, Lord De La Warr ordered Captain Yeardley and Captain Edward Brewster to lead 150 men into the mountains in search of silver and gold mines.