Hello, Although Barbara L. Allen is deceased, and the Falgoust History is out of print, copies are available at many Louisiana libraries and it is my understanding that the Allen Family is considering republishing the book.
Correct title is: Falgoust: A history and genealogy of the Falgoust and Falgout families of France and Louisiana, 1555-1988 I have a copy that I purchased from Ms. Allen some years ago.
There is also quite a bit of information available in the book: Vacherie St James Parish Louisiana History And Genealogyby Elton J. Oubre, also out of print but available in Louisiana libraries.
The Falgoust family traces its lineage back to the Falgoux family of France with earliest recorded ancestor Dominique Falgoux, I born about 1555 and who died 5/5/1654. The first who raised families in Louisiana was Louis Marcel Falgoust, born in France, married Marie Jeanne Castan in September 18, 1742 on the German Coast of LA (Des Allemands) Their children: Jean Louis Falgoust Jeanne Charlotte Falgoust Marie Antoinette Falgoust Marie Agnes Falgoust Marie Barbe Falgoust Andre Falgoust Marie Catherine Falgoust Jeannette Falgoust George Falgout Charles Falgout George and Charles Falgout changed the spelling of their last name after the remarriage of their mother after the death of their father. This is the origin of the Falgout spelling.