I forgot to answer your question about the "Rhodes Gang"..
I read the following from the net about THE BATTLE OF
MARIANNA FLORIDA.

The article states that a Richard "Dick' Curlee was
Lietenant of the "Rhodes Gang" and his commander
was John M Rhodes. It states that John M Rhodes
had already deserted before the battle at Marianna,
he deserted April 12, 1864.

This is obviously the JMR that you have found
that joined at East Pass and deserted.

Jan