I have a photo of the 153rd infantry,at camp beauregard,LA

[it is about 9" X 46"] "very old,excellant condition" looks like original frame.
I would like some more information on this photo.
There are horse drawen cannons,wagons,men on horses,tents,
They are standing at the camp in a big field for the picture.There are also a couple Model "T" cars in the photo.

On the picture is hand painted up in a tree "414"
I guess there are at least 1500 soliders displayed.
There are about a 60 man band in the picture.