I believe you are correct.
My lineage is:
Francois 30 Dec 1783 (3rd Gr Grandfather)
Narcisse 4 Jan 1832 (2nd Gr Grandfather)
Arthur 11 June 1859 (Gr Grandfather)
Louis 31 Mar 1884 (Grandfather)
Louis' daughter - Gladys Marie Eva Olivier (my Mother)
Thank you for posting. Do you have any questions?