The Mexican government established a customs house there, and it was continued when Texas gained independence. Also, during the time of the Mexican rule, a rude fortress was built on a high bluff overlooking the ferry for the purpose of providing safety for the crossing. Four cannon were reputedly part of the fort’s armament, but it is not known if they were ever fired.
During the Civil War when Union troops were known to be advancing westward through the central part of Louisiana, a Colonel Jessup was in charge of a small detachment of Confederate troops who threw up an earthen breastwork on the Louisiana side of the river. Also, some dirt fortifications were erected near the river around the town. Fortunately, these fortifications were never needed.
Records of the postal system during the years of the Republic show that a Martin Fearing was a postmaster at Sabine Town on September 8, 1840. The first United States Post Office was established on May 22, 1846 with George L. Clapp as the first postmaster. The post office was discontinued and later reestablished on several occasions, with the final closing of the post office on October 31, 1935.