How to locate an FDC Employee
Start by going to the first site (411) http://411.myflorida.com/apps/411/tel411.public_employee.employee_searchand searching by last name and select entity "Corrections, dept of" and then finding all people with that last name who are listed as working in the city the facility your loved one is located in.
If there are multiple with the same last name at that facility and you're not sure which one is the one you're looking for, then go to this site (salaries) https://salaries.myflorida.com/
and search each of those people that you found on the previous site and seeing which was listed as whatever title you were looking for.