Navy Lieutenant
Levin M. Powell was put in charge of the Everglades Expeditionary Unit, a joint
Navy-
Army unit tasked with launching an
amphibious expedition into South Florida to search for Seminole villages. Among the unit was a German doctor named
Frederick Leitner who volunteered to be a
combat medic for Powell's troops. Future
Confederate General
Joseph E. Johnston was also part of this unit as a topographical engineer. The expedition began at
Fort Pierce, where Powell and his men boarded onto boats and shipped down the east coast of Florida until they landed at Jupiter Inlet on January 15, 1838. Soon after they landed, Powell's troops captured a Seminole woman and ordered her to lead them to her village. Leaving 23 of his men to guard the boats, Powell divided the rest of his men under Lt. William P. McArthur (Navy), Lt. Horace N. Harrison (Navy), and Lt. Henry W. Fowler (Army) and marched inland. After marching inland along the
Loxahatchee River, Powell's troops were suddenly fired upon by the Seminole Indians. Powell then ordered his men to charge, and the Seminoles fell back into a dense
cypress swamp where they made a defensive stand. As Powell's troops advanced towards the swamp, they began to take many casualties as they were put under intense rifle fire from the Seminole warriors. Powell, McArthur, and Harrison were all wounded and the medic Frederick Leitner was killed. The loss of the officers caused Powell's men, who were mostly inexperienced Navy sailors, to flee in panic. Lt. Fowler was also wounded as he attempted to cover the retreat. With all of the officers down, Joseph E. Johnston took charge and managed to rally some of the men to cover the retreat. The U.S. troops retreated back to their boats and left after dark to flee to Fort Pierce. One boat, containing a barrel of gunpowder, was accidentally left behind during the retreat and was captured by the Seminoles. After recovering a lost man initially thought to be killed, Powell reported his losses as 4 killed and 22 wounded. ==Second Battle of the Loxahatchee (Jesup's Battle)==