Jefferson County, formed January 16, 1827, from Leon County, was a part of the area then called middle Florida. Many settlers who migrated to this frontier area came with their slaves seeking cheap fertile land. Thomas Randall and his wife, Laura, arrived in 1827 from the Washington, D. C./Maryland area to buy inexpensive land, and a year later had their slaves brought down to them. John and Robert Gamble were among the first families of Jefferson to transport their slaves with them, in their case from Virginia. Other settlers, like the Randall and Gamble families, moved from Maryland, Virginia, North and South Carolina, and Georgia.
"Dignity and Importance: Slavery In Jefferson County, Florida-1827 to 1860,"
Florida Historical Quarterly: Vol. 61
, Article 4.
Available at: https://stars.library.ucf.edu/fhq/vol61/iss4/4