When Gaither first opened up its doors in 1984–85, Seniors were not in attendance, and the school served only 9th-11th graders (Gaither did not have a class of 1985). In the 1985-86 year, (class of 1989) Gaither kept its doors open to 9th graders. The following year in 1986–87, Gaither ceased to include 9th graders and began to only house the 10th-12th grades until 1997 when Gaither reinstated a four-year program. Gaither's graduating class of 1988 was the very first group of students that included all four years.