It's the Stirpes article that you gave me, page 69.

In Janaury I was ordered to remove the brigade, Lepone Regiment, accross the Mississippi River to Memphis and report to Genl McGowan. I reached Jacks outpost at the junction of the White and Black rivers with the troops. When the order was countermanded, I was commanded to take post at Pittman's Ferry...
http://texashistory.unt.edu/ark:/67531/metapth39854/m1/76/
Stirpes, Volume 37, Number 3, September 1997