Hate to post to my very own but on PDF page six of this article is a map that shows the location of the steamer Runyon and if you look on PDF page 5 in the article on Walker's Bend there is a description of the wreck.
Skipwiths is several miles south of the wreck near Island 92.
http://www.mvn.usace.army.mil/pao/history/MRnames/MRnames(pg%20130-169).pdf
John R.