You might consider going to the Tampa Libray's website for obit listings. That way you can search before hand to see if there was any obit, and where it is listed.

http://catalog.hcplc.org/polaris/search/default.aspx?type=Ad...

You can enter the name and year. It will tell you where the obit is listed. Remember to change the bottom right hand selection from "PAC" to "TRAILS-LOCAL HISTORY". I always forget to do that.
If you wish? Shoot me the four names you have, dates if you have them and we will see if there is anything?
Frank