I don't have much information on the Clark family. I am descended from the Patton family. The James J. Clark that married Nancy Patton was born in 1813 in Massachusetts. He died at age 58 on Oct.14, 1871 in Novi, MI. I don't know the names of his parents. He married Nancy in 1838,( possibly in Seneca Co. New York)and in 1844 they settled in Novi, Oakland Co. MI They had 13 children Perhaps the James Clark you are researching is their son. If I come across more information I will contact you.