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 an undated broadside of furniture and house furnishings of Disney Bros., Bowmanville, and an undated broadside of ladies' and children's clothing, Hardy's: The Hewson store in Cobourg, Ontario. It also contains a broadside detailing conditions of sale of the Innes Mill near Grafton dated 1876. With this broadside is an original bill of sale, signed by purchaser George Fowler and dated December 12, 1876.

This fonds consists of one ledger and one letter book of A. Jeffrey & Son of Cobourg, Canada West and Ontario. These are excellent records of who supplied goods to merchants in Canada West and how they were shipped.

The ledger dates from 1851 to 1869. Page 3 concerns accounts of foundry repairs totalling 461.3.3. Page 8 lists the account of A. Moscrip of Cobourg (see 88-014). Articles sold include various items of hardware: white lead, putty, varnish, glass, nails, rope, scythe and so forth. Customers listed include Thomas Short, Keene, Trustees of the Grammar School, Ontario Distillery, and Foulds Brothers. The cover is labelled "1868 A. Jeffrey & Son, Cobourg, Ontario."

The letter book is a record of orders placed by A. Jeffrey & Son, Cobourg.

• Entries such as the following appear on page 1: Order for Sundries to be furnished by Messrs. Henry Rogers Sons & Coy, Wolverhamton, England, on account of A. Jeffrey & Son Cobourg C.W. to be shipped by first steamer from Liverpool to Montreal fully insured this to Cobourg and marked: B AJ & SC
• The order which follows is 3 pages long and includes such items as 6 dozen padlocks, 3 gross pen holders, 1 dozen japanned coal scoops, 48 Fosters plow moulds. Order is dated Cobourg, 7th June 1862, A. Jeffrey & Son.
• A. Jeffrey regularly ordered Phoenix bar iron (round, square, flat and half-round) from Coatbridge, Scotland. Glass products such as lamps and lamp chimneys were ordered from the New England Glass Company in Boston to be shipped by Grand Trunk Railway via Portland. Locks, keys, door knobs, escutcheons etc. were ordered from New York and shipped by canal to Oswego and thence by lake to Cobourg.