1925: Mrs. Bolton's School for Girls (Bolton) opens on Church Lane with four students. Mary Bolton is the first head of school.

1926: Kathleen Laycock, Mary Bolton’s sister, arrives to help run the school. Bolton moves to East State Street. 

1929: Bolton moves again to King’s Highway and Wilton Road.

1936: Bolton expands through Grade 12, and the first seniors graduate.

1950: Bolton celebrates its 25th anniversary.​

1957: Mrs. Bolton retains ownership of the nursery and lower school on Wilton Road; Miss Laycock incorporates Grades 6-12 as the Kathleen Laycock Country Day School (Laycock), where she serves as headmistress.

1959: The school purchases and renovates the Vanderbilt estate at 35 Beachside Avenue. In November, 71 students and 9 faculty move in.  

1960: Mrs. Bolton agrees to incorporate her lower school. Grades 1-5 move to Beachside Avenue, and Laycock now serves girls Grades 1-12.  ​

1963: Miss Laycock retires; William Posey is named the third head of school.

1964: Nancy Lauber ’51, is named the fourth head of school. Enrollment stands at around 250, students with 30 faculty members.

1970: The Board of Trustees votes to become coeducational school; 23 boys are admitted. The school is renamed to Greens Farms Academy (GFA).

1971: Boys are enrolled in all grades for the first time.

1972: Jim Coyle is named the fifth head of school. The campus begins a period of rapid growth, with new academic wings, a library, language labs, computer rooms, and a large gymnasium added.

1975: GFA celebrates its 50th anniversary.

1981-88: Key facilities are added: Gillian Scholey Colhoun Library (1981), Bernhard Academic Wing (1982), tennis courts and a new playing field (1985), The Lynne A. Warren Lower School Wing (1987), and The Lucie B. Warren Middle School Wing and Taylor Forum (1988).