I am told that the tower is still where it was, that the Coast Guard cut off the lantern room. There were about 8 of these unmanned reef lights, all about 50 feet high. Tennessee Reef is the last one to still have the lantern room on it. Pacific Reef is near Caryforts Reef Lighthouse.
If you go back to Lighthouse Directory under Florida and read the opening paragraph, there is a link to the list and includes a picture of Hen and Chickens Unmanned Reef Light (at the bottom). I took the picture.