The scouting report for Marmaduke to be at Gaines Landing on June 12th matches the diary entry almost exactly as Gainse Landing is on the Mississippi north of River Lake and south of Amos Bayou near present day Dewey Arkansas.

The following OR entry may be the action of July 11th/12th described;

JULY 13, 1864.- Reconnaissance from Pine Bluff, Ark.

Report of Colonel Powell Clayton, Fifth Kansas Cavalry.

PINE BLUFF, ARK., July 14, 1864- 9 a. m.

I made a reconnaissance down the river yesterday with 600 cavalry and 400 infantry, an five pieces of the Sigel artillery, attached to the cavalry regiment. Went fifteen miles down the river, at which point I found Crawford's brigade in line of battle in a very strong position. As my intention was simply to reconnoiter I did not deem it advisable to attack him. Not knowing what re- enforcements he might have in his rear, and my right flank and rear being very much exposed to a flank movement on his part, I endeavored by concealing my main force and showing but a small party in his front to draw him out of his position, and if possible lead him on to my infantry, which was posted under cover about seven miles in our rear. Failing in this, I sent for my train and had it loaded with forage during the night; returned early this morning. Fagan is at Douglass' plantation, about fifteen miles below where Crawford's brigade was yesterday. It is going to be very difficult for us to forage much more down the river. The only place that will be left for us will be upon the opposite side. I sent a dispatch to General Steele in reference to the expiration of the term of service of three companies of the Fifth Kansas Cavalry. I have received no answer. Their terms have expired. There is no mustering officer here. What shall be done with them! Please have the general direct what field officers shall be mustered out with them.

POWELL CLAYTON,

Colonel, Commanding.
....

John R.