I had located the following information, but please note the info provided regarding the arrival to the USA when he was still a Minor.
Name: Zachariah Leigh (Alt. First: Zechariah)
Birth: 9 Apr 1704
Carshalton Parish, Surry, England
Death: Nov 1770
Farmville, Prince Edward County, Virginia, USA
Arrival to America: Abt. 1718
Arrival Port/Processing: Baltimore, Maryland, USA
Final Destination: 12 Aug 1718
Virginia, USA
REASON: For apprenticeship to serve Mr. James Roscow (Merchant) from the State of Virginia,
PLEASE NOTE (Regarding Arrival to the USA): Sent to America under the "Child Apprentices in America" via the "Christ's Hospital" in London, England.
Father: John Leigh
Birth: Abt. 1680
Carshalton, Surry, England
Death: 15 Sep 1710
Carshalton Parish, Surry England
Marriage: Abt. 1687
England
Mother: Sarah Ellen Jones
Birth: 7 Jun 1677
Surry, England
Death: 5 May 1718
Carshalton, Surry, England
Burial: 5 Jun 1718
London, England
I'm sure that this information clears allot of information up for you. :-P
Good Luck!
~Brian Kerr