If that is the right Thomas these maybe his siblings...
James Charters. Christening Date, 05 Jul 1773. West Chapel, Wooler, Northumberland.
Isabel Charters. Christening Date, 28 Jul 1778. West Chapel, Wooler, Northumberland.
Eleanor Charter. Christening Date, 13 Sep 1771. West Chapel, Wooler, Northumberland.
John Charter. Christening Date, 12 Mar 1770. West Chapel, Wooler, Northumberland.
All to James and Elizabeth and this could be their marriage...
James Charter m Elizabeth Thompson. 20 Dec 1769, Doddington, Northumberland.
Doddington is only about 2 miles from Wooler.