My sons' grandfather was Norris LeBoeuf born 12 Nov 1934 died 23 July 1984, in Vidor, TX. His great grandfather was Adam LeBoeuf Jr. born 31 July 1903 died 2 Feb 1995 in Kaplin, LA he was married to Marie Elizabeth Vondenstein in 1932. GGgrandfather was Adam LeBoeuf, Sr 11 Mar 1874 in Patterson, LA and he married Eva Mire 17 May 1896 in Lake Arthur Jefferson Davis Parish, LA.I have found them on the 1920 census with his name spelled Adom Lebouff with Eve and 4 children, Donatile (aka Adonatilde), Oneil, Adam and Evans.I have also found records of the births of Donatile, Oneil and Evans in South Louisian Records the years 1900 - 1915 by Rev Hebert.There was no record of Adams birth.
I have a copy of a book that lists Adam and Donatile marrying into the Vondenstein family, Donatile married Elizabeth's brother Hubert Joseph "Joe" Vondenstein.There is also a Ella Leboeuf marring another brother Bernard "Ben" Johann Vondenstein in 1936 but I don't know if she was a sister or a cousin. The book is called German Colonists of Roberts Cove, LA Their Ancestors, Children and Grandchildren compiled by Rev Charles J Zaunbrecher.This book belongs to my sons uncle, one of Norris' sons.
Please contact me and we can compare notes.I will look in the books by Rev. Hebert for the names you listed and see if i can find anything else for you.