You could first try a Goggle search, 3rd Battalion Florida Calvary.

At Carol Botteron's CW Units site at:

http://sunsite.utk.edu/civil-war/unit4.html

you might want to check with these contacts for the subjects noted.

All FL Units (histories & soldiers) WMORGAN3@aol.com (Skip Morgan)

The Civil War in Florida jrigdon@researchonline.net (John Rigdon)
http://www.researchonline.net/flcw

3rd Batt. FL Cav. Co. C 1861-4 bama1957@earthlink.net (Henry Skinner)
(Simpson Mounted Rangers)

Good hunting,

George Martin