Ancestry.com. El Salvador, Civil Registration Index, 1756-1921 [database on-line]. Provo, UT, USA: Ancestry.com Operations, Inc., 2014.Original data: El Salvador, Civil Registration Records. Salt Lake City, Utah: FamilySearch, 2013.
About El Salvador, Civil Registration Index, 1756-1921
This collection includes birth, marriage, and death records from El Salvador.
You can learn more about this collection at the FamilySearch website.