With the advent of World War II, growth began to impact Longwood as military personnel flowed into the new Naval Air Station Sanford to the north and Orlando Army Air Base to the south. By the 1950s, NAS Sanford was being converted into a Master Jet Base for carrier-based heavy attack aircraft and, along with the re-designated Orlando Air Force Base and nearby Pinecastle AFB (later renamed McCoy AFB), saw even more military families renting or purchasing homes in and around Longwood. In 1959, the City had slightly over 1,000 residents and a city limit boundary that measured approximately by square. In 1960, Longwood Elementary School was constructed and opened inside the city limits. During the 1950s and 1960s, the city also boasted its own airport, a single runway grass airstrip used mainly by private airplanes. Longwood Airport was located on the west side of the city and on the north side of State Road 434, until it was closed and developed into tract housing that became The Woodlands subdivision in the mid-1960s.