I know this is a very old post but here goes. My husband's family were the George W. Boston family who moved from Georgia to Alachua County sometime in the later 1840's. George's sister, Eliza, married into the Dell family, who helped settle Newnansville. I think at one time, it was called Dell's Corner. Anyway, they had huge amounts of land and I am sure they would have had "plantations". If you contact the John Wershow family, who now live on the Dell property, he could provide you with information.
The Boston Family Farm is in Alachua and was run by my husband's Uncle until the 1990's. It was recognized by the state as a Centennial Farm in the 1960's. Uncle Earl never married and non of the descendants were able to run a large cattle farm, so Uncle Earl established a Living Trust with UF. The farm that bordered the Boston Farm is Santa Fe River Ranch. It was originally called Sugar Grove Plantation and was owned by John and Melinda Sherrod Sheffield Richard(pronounced ReChard).
They originally lived in Glynn County, GA but moved to what would become Alachua County sometime prior to 1829. There is much information about the Richard family in a book by Mark A. McDonough , called "The Francis Richard Family from French Nobility to Florida Pioneers 1300-1900".
George's son, William King Boston married a daughter of John and Melinda, and as a wedding gift, a bit of the Richard property became part of the Boston farm.
When Uncle Earl established the Trust, the owner at the time of the now Santa Fe River Ranch donated enough land to make it an even 1,000 acres. The land now is recognized as the Boston Farm and Santa Fe River Ranch Beef Unit.
Hope this helps, even though it is many years too late!