The growing tension between the United States and Mexico during the early part of 1846 found Florida singularly unenthusiastic for war. For one thing, she had only achieved statehood the year before. Then, too, she still felt the adverse impact not only of the 1837-43 depression, but also - more important - the devastation of the Seminole War. Despite these feelings, when Congress actually declared war on May 13, 1846, there was general support for the cause throughout the state. Ultimately, five Florida companies were called into service and three saw action in Mexico.
Thompson, Arthur W.
"A Massachusetts Mechanic in Florida and Mexico, 1847,"
Florida Historical Quarterly: Vol. 33
, Article 7.
Available at: https://stars.library.ucf.edu/fhq/vol33/iss2/7