You can get a copy of this succession from the St. Martin Parish Clerk of Court for a small fee. The succession should say if he was married and had any heirs. I do not see a marriage record in the SWLR CD.
St. Martin Parish Clerk of Court P. O. Box 308 St.Martinville, LA 70582 Phone: 337-394-2210
Other SWLR CD entries: MAGILL, A.S.a non-Catholicm.5 May 1841Frances Mary WEEKS (NI Ch.:v. 1, p.25)