The records in this collection cover Brookside School from its beginnings, as Bloomfield Hills School in 1922, then from 1930 as Brookside School Cranbrook through 2019.

Series I: Governance (1922-1984 contains correspondence, legal documents, and minutes for the Children's School Trust, Board of Trustees, and Board of Directors.

Series II: Administration (1922-2004) provides information on admissions; curriculum; histories; and headmistress/headmaster appointments, correspondence, reports, and resignations.

Series III: Financial (1923-1965) contains appraisals; invoices; Children's School Trust journal and ledger; and reports.

Series IV: Building Records (1929-1998) holds materials relating to the building and additions including the Early Childhood Center, and art objects.

Series V: Parent Organizations (1960-1985) holds a bulk of Parent Council materials with some Dads' Club and Mothers' Club materials.

Series VI: Programs (1929-2018) includes the invitations and brochures for annual and ad hoc school events.

Series VII: Publications (1924-2013) includes all printed materials created by and related to the activities of the school.

Series VIII: Oversize (1922-2009) contains photographic materials, a history of the school collated by John Denio, a financial ledger, and some items of realia.

Series IX: Audio-Visual (1953-2012) includes VHS, audio cassette, and mini-DV formats mostly of performing arts events.