Carl
The index of the History of Bradford, Vermont only lists Admiral Charles Clark. I will browse book more later on and let you know if I find anything on the names you mentioned.
Bradford, Vermont Burials, 1770-1997, by Arthur L Hyde for the Upper Plain Cemetery has the following entries...
Hannah Leslie Clark 1781-1864
Joseph Clark (Dec) d. Dec 14, 1835 in 85th year, wife Sarah
Sarah Clark d. March 18, 1833 age 80, wife of Dec. Joseph Clark
Mother Clark d. Apr 4, 1808, age 93y, mother of Dec. Joseph Clark
On Family Search there is....
Samuel Haskins married 19 Jan 1804 Hardwick, Worcester, Mass to Hannah Clark
hope this helps... Tootsie