If yo are trying to locate living descendants of an ancestor, one tool you may use is a list of voters. This link takes you to a list for Florida, but it also will lead you to lists from several other states.
There are many ads on this site, so be aware of where you click. Often you have to scroll down a page a bit to find the list you are searching for.
Registered Voters in the State of Florida, U.S.A.:
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