The creation of the Middle District was tied up in fundamental changes that, in the mid-1950s, were working social, cultural, political, and all manner of other revolutions in the Sunshine State. The Middle District was carved out of the Southern District of Florida, a huge district that spanned the entire peninsula from the Georgia border to the Florida Keys. The new district resembled a cross ways slash of territory running from the Georgia border as far south as Brevard County before it swung west and south all the way down the peninsula to the southern boundary of Lee County. After 1962 the Southern District included Florida's high density population centers of the Gold Coast to the Keys. The new Middle District contained thirty-three counties and the new Southern District contained twelve.1
Denham, James M.
"Creating the United States District Court for the Middle District of Florida,"
Florida Historical Quarterly: Vol. 92:
2, Article 5.
Available at: https://stars.library.ucf.edu/fhq/vol92/iss2/5