Hi, The book by Russ Williams is in most major libraries and is probably more helpful than a visit to the courthouse.
Genealogical and Historical Abstracts of Legal Records of
Saint Helena Parish, Louisiana, 1804 - 1870, including:
Successions (Probates and Wills), 1804 - 1854,
Tax Assessment Rolls, 1823, 1824, 1828, and Marriages
1811 - 1870. Ernest Russ Williams, Jr.,
514 Cole Ave., Monroe, La., 71203