The state of Florida seceded from the
United States in January of 1861, and
the Union began a blockade of
southern ports that April. At the
time, St. Augustine was an important
port city with fortifications and a
lighthouse. The South desperately
needed to export cotton and other
commodities in exchange for arms.
Southern ship-owners were issued
letters of marque
(1) by the
Confederacy, and they began
privateering. Both trade and
privateering required well
fortified ports. Northern
shippers were in a panic. On
August 18, 1861 the most
successful of the Confederate
privateers, the brig
Jeff
Davis, was grounded on the
bar outside the St. Augustine
harbor
(2). On
March 12, 1862 Union forces
under Commodore Dupont seized
control of St. Augustine and
Fort Marion (Castillo de San
Marcos)
(3). The
night before 20% of the
population set sail for New
Smyrna
(4).
Pictured at right are Union
troops in the courtyard of
Fort Marion.