Captured Audrain County Oct 16th 1862. His commission trial records indicate he was at Battles of Kirksville and Walnut Creek.
Same story as Benedict, scattered went home, tried to go south surrender because he was afraid Feds would shoot him at home.
Reading charges and specifications, clearly the authorities in North Missouri did not act like these guys were enlisted in a regular CSA Unit even while admitting Porter was a duly commissioned CSA officer. Adjectives like outlaw, bushwhacker, guerrilla, criminal conduct, rebel, are sprinkled through the records with abandon.