This website maintains a database of all known law enforcement officers who have died in the line of duty. Their names are on a memorial in Washington, D.C. Here are the Louisiana officers, arranged by their city or parish department:
https://www.odmp.org/search/browse/louisiana
Ouachita Parish Sheriff’s Office and Monroe City Police Department losses are listed here, along with some photos. The oldest death for both in Ouachita Parish happened in 1869! The webmaster is always looking for further information and photos of officers you may know of. If one you know isn’t listed here, all they require is documented proof of the death in the line of duty. I have added several names to the Ouachita Sheriff Department list.
Ouachita Parish History Tidbits 