Regarding when they came to Louisiana: the 1850 Census of Troup County, Georgia lists Joseph P. Sale, 28, a farmer by occupation, with a 20-year-old wife (Ann) and James, a one-month-old son. By 1860, they were in Louisiana. The story I heard was that they came by wagon, with a group of other families. Some of Joseph P. Sale's older brothers had already made the trip, settling in Bienville Parish.
The Charity Moss ancestors have been pretty-well documented by the Moss family. While my records confirm that Emma and Alexander married Mosses, I only know their names and have nothing about their ancestry.
My records do not have Adolphus John's descendants and I would be interested in seeing how you fit into the picture.