Re: 1st Florida U.S. Cavalry
If you have access to either Ancestry or Fold3 (use to be Footnote) they both have index cards with a bit of info from the pension file. You can get application and certification file numbers and sometimes names of spouses, children or grandchildren that applied, date of death, dates of pension application and certification. Order a copy of the actual file from the National Archives and Records Administration (NARA) at www.archives.gov
. The page where you can order online or print the order form and mail is at http://www.archives.gov/veterans/military-service-records/pre-ww-1-records.html
. Not sure what the cost is these days. May depend on the size of the file. Good luck.