I wish I knew you were looking for that information yesterday. I read a newspaper account of how Johnston’s staff, after his death, was invited to join Beauregard’s staff. However, on the morning of April 7th, while it looked to them the battle was over, they all left with Johnston’s body.

I am able this morning to find this…

Daily True Delta, April 10, 1862.

Funeral Escort

The remains of the lamented Gen. A. S. Johnston arrived yesterday forenoon at the Jackson Railroad depot, and were received by the civil and military authorities, after which they were escorted to the City Hall, where they are now laid out in state. The following is the order of the procession: First, the Confederate Regiment, which was followed by Capt. Semmes Artillery Company, the Orleans Hussars, the Orleans Guides, the funeral car, attended by the pall bearers and Gen. Wm. Preston, brother-in-law to the deceased, Col. Dudly, Major Munford, Col. Wickliffe, Col. Jack, and others of his staff. These were followed by Major-General Lovell and staff, the governor and staff, in carriages, the civil authorities and citizens.

The procession marched up Calliope street to Carondelet, down Carondelet to Canal, up Canal to St. Charles, and up St. Charles to the City Hall, where the remains were deposited. It was not generally known that the remains were to arrive yesterday, otherwise the turn-out in respect to the memory of the illustrious dead would have been much larger. We learn that the mayor has tendered a vault in the St. Louis Cemetery in which to deposit the remains until such time as they are removed for final sepulture by his family.

New-Orleans Commercial Bulletin, April 10, 1862

…The sword which had gleamed so bravely in our defense but a few hours before, lay in its weather stained scabbard beside him…

I’ll keep looking.

___________________
David Upton