John Rolfe was a farmer in the Jamestown settlement whose crops of tobacco became the economic basis for the colony. Known as an "ardent smoker." Rolfe was was probably instrumental in importing tobacco seed from Trinidad between 1610 and 1611. He crossed the imported breed with the indigenous tobacco to produce a plant well adapted to the local soil and reportedly of pleasant taste. When the English cargo vessel Elizabeth sailed from Virginia on June 28, 1613, it presumably carried Rolfe's first crop for export. In April of the following year, John Rolfe married Pocahontas in Jamestown's church. Before they could return to Virginia, Pocahontas fell ill and died at Gravesend, on March 21, 1617. She and Rolfe had one son, Thomas, who eventually returned from England and established his family in Virginia. He died early in 1622 and was survived by his and Pocahontas's only son, Thomas Rolfe.