National school records from various primary schools in Offaly and bordering townlands. Mainly contain registers and roll books concerning, respectively, the registration and the daily attendance of pupils; and also smaller amounts of other records such as daily attendance statistical report books and inspectors books.
The registers record a pupil's name, age, and date of birth, and the address and occupation of parents.

Sections A-C contain many thousands of invoices, receipts, cash books, quotations and estimates, contracts, journals, wages records, production records and order books, and any other type of record relating to the daily administration of the business (1843- 1994).
Section D is comprised of thousands of incoming letters and a much lesser volume of copy outgoing letters, arranged in sub-series exactly as created: in bundles of alphabetically filed letters, bundles of letters filed by month and year, letterbooks of copy outgoing letters, correspondence arranged by owner, legal correspondence and some smaller files or correspondence with government departments and millers’ associations (1873-1964).
Section E is an artifically created series containing correspondence, statements of account and advice notes relating to the distribution of grain into and out of Belmont Mills (1874-1947).
Section F is an artificially created series of correspondence, receipts, policies and schedules relating to the extensive insurances taken out on the mills and on the lives of the owners (1874-1936).
Section G is an artificially created series containing investment policies, banking receipts and debtors’ bankruptcy papers (1873-1954).
Section H contains posters, labels, signs, and packaging relating to the marketing of Belmont Mills products (c.1900-1950).
Section J contains income tax receipts, personal correspondence, and account books relating to the Church of Ireland, personal household expenses, and Lisderg Farm (1858-1975).

Four daily report books (1918-1938) and one district inspector's observation book (c.1880-1914) of High Street, Belmont, Girls National School.

Two photographs of Belmont House, taken by James Doorly and Company, Auctioneers and Valuers, Cloghan, County Offaly.