You could first try a Goggle search, 3rd Battalion Florida Calvary.
At Carol Botteron's CW Units site at:
you might want to check with these contacts for the subjects noted.
All FL Units (histories & soldiers) WMORGAN3@aol.com (Skip Morgan)
3rd Batt. FL Cav. Co. C 1861-4 firstname.lastname@example.org (Henry Skinner)
(Simpson Mounted Rangers)