You stated;

"This vessel was burned on the White River in Oct., 1863 to prevent its capture."

This is incorrect. The CSS Ponchartarin was burnt by Confederate Force at Little Rock along with 6 other vessels in September 1863 to prevent it capture during the evacuation of Little Rock, September 10th 1863. The Ponchartrain being a deep draft vessel couldn't cross the bar in the Arkansas River below Pine Bluff except in high waters periods usually during the spring. Therefore it could not reach the White River in September or October.