This fonds consists of the records of the Cobourg foundry. It includes journals, ledgers, correspondence, accounts, pay lists, bills, receipts, contracts and specifications of jobs done as kept by James Davidson, founder and machine shop operator. There is also some correspondence from A. Munson of Oil Springs, Canada West relating to the oil industry, as well as correspondence from Henry Fowlds with regards to work done and payment of accounts.

This collection consists of assorted documents relating to Cobourg and vicinity. It includes marriage certificates, correspondence, indentures, opera house programmes, choral and church programmes, an oil sketch by Alice M. Duncan, and photographs and postcards. It also includes a copy of the "Cobourg World", April 8, 1898 Volume 25, and No. 43.