Donnie: I looked at census records in South Carolina. I find several William Hutchinsons around the correct birth date, but none with any family (there is a James in one of the 1850 census records. I thought since Susan was listed as born in 1838 and she wasn't married until 1854, I might find her with someone else (her mother?, etc) but I didn't. I'm not sure you can say that this is the correct William Hutchinson.
Here's what I found:
William (47) with James (14) in the 1850 census: https://familysearch.org/ark:/61903/1:1:M8Q8-FRG
William Huchason, age 45 in the 1850 census: https://familysearch.org/ark:/61903/1:1:M8Q8-4GP
William (age 70) in the 1870 census: https://familysearch.org/ark:/61903/1:1:M8R6-5YW
There is a William Hutchinson married to a Mary but he's born in 1825 and there is no Susan. Something just seems incorrect.
Sorry, I don't think that's a lot of help. Good luck with your continued search.