1859

The Portland Academy is founded in downtown Portland.

1911

Ruth Catlin founds Miss Catlin's School in Northwest Portland (girls, day and boarding, grades 8-12).

1917

Miss Catlin's School moves into the newly completed main building on Culpepper Terrance.

1920

The Portland Academy becomes the Preparatory School. Miss Priscilla Gabel is a teacher.

1926

Hillside School building, grades K-8 coeducational, is completed on Culpepper Terrace.

1927

The Cady School of Music dissolves and many students transfer to Hillside School.

1928

Ruth Catlin deeds the school to the board of trustees, which incorporates the Catlin-Hillside School.

1931

The Preparatory School becomes Miss Gabel's School.

1936

Miss Gabel's School moves to Raleigh Hills and becomes Gabel Country Day School.

1941

The Catlin-Hillside School discontinues its boarding component.

1945

Gabel Country Day School discontinues the high school, continuing classes for grades K-8.

1957

Catlin-Hillside School and Gabel Country Day School merge to become Catlin Gabel School.

1957-58

Catlin Gabel School uses both campuses, enrolling the first coeducational high school class on Culpepper Terrace, but losing the Gabel property to Raleigh Park Public Schools.

1958

Catlin Gabel purchases the Dants' Honey Hollow Farm and relocates the Upper School there in the fall. The Dant House, Barn, and Paddock serve about 70 students.

1967-68

Grades K-8 move to the Honey Hollow campus.

Present

Catlin Gabel School now enrolls more than 700 students, preschool-12th grade. The Dant House remains the heart of the Upper School; the Barn and Paddock are common areas for all students.