Existing within the Freeport LNG marine terminal area is the Seaburn and Bowers families’ cemetery dating to the mid-1800s. The Seaburns began homebuilding and shipbuilding businesses in Quintana in the days of the Republic of Texas, and the cemetery is one of the last vestiges of the early seafaring history of the area. This cultural resource is being protected through a Cemetery Protection Plan that was developed by Freeport LNG. Visitors to the site are escorted by Freeport LNG security staff and allowed to view the markers that have been placed in memory of family members.

Previous archeological work had identified components of the old townsite of Quintana that was damaged extensively in hurricanes in 1875 and 1900.