High Quality Content by WIKIPEDIA articles! USS St. Clair County (LST-1096) was a LST-542-class tank landing ship built for the United States Navy in World War II. Like most of the ships of her class she was originally known only by her designation, USS LST-1069, and, like all remaining LSTs, was renamed on 1 July 1955. She was named for counties in Alabama, Illinois, Michigan, and Missouri.