The Thornton-Donovan School (TD) was founded as the New Rochelle School and Kindergarten in New Rochelle, New York. It was founded by Judge Martin Jerome Keogh in 1901. The first teacher and headmistress was Emily Scott Thornton, a Philadelphia native educated at University College Nottingham, now the University of Nottingham. The headmaster as of 2018 is Douglas E. Fleming, Jr. The school is now at its third campus, on Overlook Circle in the Beechmont neighborhood of New Rochelle. It inhabits three former homes, including the former Andrew Crawford estate, now the Main Building.