He married Unknown Foster. (Descendants provided by Dan Trimble)
Isaac Joseph Whittington and Unknown Foster had the following children:
Elizabeth Whittington. She married Harvey Vanderford.
Mary Whittington was born 1802. Mary died April 29, 1882 at 79 years of age. She
married William Whittington Allen May 18, 1819. William was born 1794. William was the son of W. Davis Allen and
Mary Jane Polk Whittington.
Margaret "Peggy" Whittington was born about 1806. She married twice. She married
Thomas Botham April 24, 1824. She married William Porter after 1824. (Dan Trimble)