Robbie, Just a wildguess but Capt. Fluitt could have been Dr. Samuel B. Fluitt . He also served in the Civil War and could have been nicknamed "Capt." He lived in Caldwell Parish most of his life. He is found in Caldwell Parish in 1880 and Calcasieu Parish in 1900. He was back in Caldwell Parish in 1910. Although I heard that he later moved to a nearby town or parish.
Maybe Simeon Thomas was a patient of Dr. Fluitt and died while under his care.