I have worked out Cabell's Confederate movement route from Ozark to Battle of Fayetteville along Mulberry and Frog Bayou Road April 16-18, 1863. Am looking for a publisher for the complete article w/ maps but willing to share research info with others in the interim.
Here's a clue -- Frog Bayou route is documented as of 1808 and is not along the "Pig Trail."
-kirby-