I have just gotten back to the St. Amants. In case you still need the linage:
(My half brother's father is Elex St.Amant, son of Lewis St.Amant, grandson of Francois)
Francois Donneville St. Amant b 16 Oct 1870 Youngsville, La. parents are Camille & Carmelite Desormeaux per SouthWest Records by Father Hebert.
The connection between Camille & his father Venance was thru the 1880 US Census.
Venance St. Amant, Sr. b 01 Jan 1800, New Orleans
m 13 Sep 1835 to Amelia Asselin
d 07 Mar 1879 La.
Alexandre St. Amant b 03 Feb 1761 New Orleans
m 22 Nov 1787 to Anne M. Zerinque
d Abt 1831 New Orleans
Pierre Daspit b Abt 1723 La.
m Abt 1749 to Mary Anne Carmouche
d 05 Oct 1784 Unknown
Jean Francois Daspit b Abt 1690 Toulouse, France
m 13 Apr 1722 to Marie F. Dubussion
d Abt 1730 Vidalie, Concordia La.
and if you type in "France: the Daspit Lineage", you will find a very long history that connects to royalty and is very detailed. The Daspit-St.Amant names were merge w/the king's permission after a marriage; the two names split again in Louisiana [have not found out why].
Hope this is all new to you & will complete your tree.