Your post is nine years old. This evening I was just researching very distant relatives of my Carson family line when I found Prudence in our records and noted she died in Huntington Co, IN. As I moved to Fort Wayne in 1990 and go shooting at the Huntington Co Reservoir from time to time, I was excited to find a possible relative so close. Googling her I find your post.
If this manages to find you here is the information copied right from our Rootsweb.com page.
2. -James Carson (--Joseph Carson2, --Thomas Carson1) was born 11 OCT 1798 in Fayette Co., PA, and died MAY 1834 in Clinton Co., OH. He married Prudence Cloud 25 JAN 1820 in Clinton Co., OH, daughter of Thomas Cloud and -Margaret Carson. She was born 1796 in Brownsville, Fayette Co., PA, and died AFT JUL 1860 in Huntington Co., IN.
Children of -James Carson and Prudence Cloud are: + 10 i. Margaret Carson was born 10 JUL 1822 in PA, and died 19 JUN 1899 in Seneca Co., OH. 11 ii. Joseph Carson was born 12 DEC 1823 in Clinton Co., OH, and died 7 JAN 1856 in Van Buren, Grant Co., IN. + 12 iii. Thomas Carson was born 1825 in Clinton Co., OH, and died 18 DEC 1899 in Grant Co., IN. 13 iv. Jethro Carson was born 17 MAY 1829 in Clinton Co., OH, and died 27 DEC 1854 in Van Buren, Grant Co., IN.
My relationship would be to James her first husband and father of listed children. That relationship is very complicated because both of my Great Great Great Grandparents were first cousins with each other and each was a first cousin with James, more so as my Great Great Great Grandmother was actually a DOUBLE first cousin to James. Since you use your closest relationship I would be a double first cousin to James Carson 5 times removed.
We are of the Thomas b1740 and Mary Smith Carson of Washington Co. PA who came here from Ulster Ireland. Their son Joseph would be the first father in law to Prudence and grandfather to her Carson Children. I recently visited the grave of Joseph in Big Run Baptist Cemetery, Franklin Township, IN just SE of the Indy loop in Marion County IN.