The ferry service continued to expand with the Fred D. Doty being replaced by another ferry called the Manatee in 1932. A fourth vessel, the Sarasota, was bought and put into service in 1937. Ferries departed every 30 minutes between 7:30am and 9:00pm during the winter. In the summer, they departed every 45 minutes. The ferry company ceased operating when the US federal government confiscated the boats as they needed them for the World War II war effort in 1942.
