François Amable L'ECUYER (François Marie & M.Thérèse Leduc)
Born: 1734-10-17 Montréal
Died: bef 1760 Sault-au-Récollet/Canada
Married: 1758-01-07 Sault-au-Récollet
Louise Marie Thérèse SIMON-dit-Delorme-Lapointe (François & Marie Brunet-Belhumeur)
-one child only from this marriage: François Amable, born 1758-11-29 who later married Marie Anne Falcon
Louise Marie Thérèse SIMON-dit-Delorme-Lapointe re-married 1760-11-04 to Joseph Marie Dagenais with whom she had 3 more children who lived old enough to marry.
So, out of your two Amable's, there can be only one left: François Amable (m. Marie Anne Falcon).
BUT, there is another Amable (therefore a possibility): Joseph Amable (François Marie & M.Thérèse Leduc) b. 1744-09-23 ~ married Marie Anne Elizabeth Choret 1765-01-07 Sault-au-Récollet. Could he have migrated around 1770?