Henry Seymour was born 30 May 1780 in Litchfield, CT and died 26 Aug 1837 in Utica, NY.In 1807 he married Mary Ledyard Forman (18 Feb 1785, NJ - 16 Sep 1859 Unita, NY).Their children were: Mary Forman (b. 15 Sep 1807); Horatio (b. 31 May 1810); Sophia Apolina (b. 2 Aug 1812); John Forman (b. 21 Sep 1814); Helen Clarissa (b. 1 Mar 1818) and Julia Catherine (b. 4 May 1827).I know that Horatio married Mary Bleeker and they had no children.I am seeking the spouses and children of Horatio's siblings.I am looking for any of them having a connection to my Barbour family as Horatio is said to have been a cousin, specifically to John Barbour who married a Harriet Seymour and they had John Seymour Barbour, born 11 Aug 1837. Any help or guidance on this will be greatly appreciated.