None that I have found, I don’t think they had the time to develop a flag folding tradition.

The triangular folding (tri-cornered) of the U. S. National flag is a unique U. S. Uniformed Services tradition that has spilled over into civic groups & civilian traditions after WWII. If I recall correctly, the U. S. Flag Code, which is based on the U. S. Army & Navy procedures, does not state a procedure for folding the U. S. National flag.

Happy Trails!
Tom Martin
www.Confederate-flags.org