Story of Zion Cemetery in Tampa Florida -- Tracing Descendants

Question

New article on the Zion Cemetery in Tampa, Florida, United States.  They are trying to trace the descendants of those interred. 

https://www.tampabay.com/news/hillsborough/2019/12/30/search-for-story-of-zion-cemetery-shifts-from-graves-to-family-records/

Answer 1

I do not see a cemetery category under Hillsborough County, Florida, for Zion Cemetery.  Should one be made, even though it is not an official cemetery anymore?  How are other cemeteries that are no longer official cemeteries, but still have burials, treated?

https://www.wikitree.com/wiki/Category:Hillsborough_County%2C_Florida%2C_Cemeteries