In the Genealogy of the Hitchcock Family book by Mrs Edward Hitchcock Sr -- section Descendants of Mathias Hitchcock--Branch 1-- pg22--- Harmon Hitchcock, son of Miles Hitchcock (Miles had two unnamed wives.) Mother not defined --Harmon b 29 Dec 1813 d 22 Jun 1876.
Miles Hitchcock b 9 Nov 1784 d 28 Jan 1854 Franklin, NY, son of Jared Hitchcock and Irene Bartholomew
Sibblings: Benjamin no b date, Seth b 24 Aug 1807, Jared b 4 Oct 1811, Isaac b 12 Jun 1816 d 9 Feb 1880, Amanda b 19 Sep 1818, Matthew b 3 Aug 1819 lived in Franklin, NY, Jane b 3 Aug 1819.
Mathias1, Eliakim2, Samuel3, Thomas4, Jared5, Miles6, Harmon in question7
You can read the book free online--there is a go to area type in the family name eg Jared and it will anotate all the Jareds as you flip pages.