REMOVE

1. Pensacola Bay (Fla.)
2. Fortification
3. United States
4. Pensacola

WHAT

1. Harbors (1)
2. Pensacola (Fla.) (1)
3. Santa Rosa Island (Fla.) (1)

WHERE

1. Escambia (2)
2. Florida (2)
3. North America (2)
4. Pensacola Bay (2)

WHO

1. Frank Leslie (1)
2. Thomas Jefferys (1)

WHEN

1. 1763 (1)
2. 1861 (1)
3. February 9, 1861 (1)