Here is another treasure from Nan Saulsberry! It is a report she did on the area’s historic homes. The building’s that are mentioned: O’Kelly House, Lower and Upper Pargoud Plantations, Fort Miro DAR Chapter House, Layton Place, Ingleside, Colonial Dames Museum [Isaiah Garrett Law Office], Boscobel, and the Filhiol Home. Keep in mind, some of the information here is now known to be incorrect.
https://www.louisianadigitallibrary.org/islandora/object/oplib-orv%3A135
Ouachita Parish History Tidbits 