Thanks!

You might want to look at Anthony Rushing's post below. He provided a link to the POW books for Little Rock that shows the prisoners that were processed from the Longview Raid. This answers a lot of my questions. It is clear that the raid netted a number of men from Dockery's Paroled and Exchanged Infantry Regiments. I haven't gone through and counted yet, but most of the Vicksburg and Port Hudson Regiments are represented by multiple soldiers on this list.