The fonds consists of personal papers and correspondence, household receipts, farming accounts and correspondence, and solicitations for business, building contracts, building accounts, business receipts and correspondence, banking papers, income tax papers, legal papers, assessment rolls and tax notices for the Township of Nelson and the Municipality of Burlington, wartime papers, education papers, Federal government papers, voters’ lists, Fruit Growers Association Reports, Ontario Department of Agriculture bulletins and other booklets about growing fruit collected by Blair. There is also considerable material pertaining to Knox Presbyterian Church including annual reports, financial statements and account books, quit claims, mortgage, deeds etc., lists of subscribers to the building fund, membership list, and magazines. Items with very early dates were acquired by George Blair in course of his professional life. The records were not consistently organized and were received by the Archives after the family had sorted them. Fonds is comprised of the following series: Account books 1861-1915. - 11.5 cm. Banking papers 1878-1928. - .5 cm. Business records 1878-1928. - 20 cm. Federal government papers 1887-1919 (artificial series). - .5 cm. Household receipts 1879-1928. - 1.5 cm. Income tax papers 1918-1924. - 1 cm. Insurance policy papers 1893-1927. - 1 cm. Investment papers 1889-1927. - .5 cm. Knox Presbyterian Church 1844-1930 (artificial series). – 1.5 cm. Legal papers 1850-1923. - .3 cm. Municipal records 1861-1928. - 12 cm. Personal papers 1860-1928. - 3 cm. War papers 1914-1918 (artificial series). - 2 cm.

Fonds consists of material relating to J. Cooke Concrete and to William Jacob Cooke, and includes deeds and other legal documents relating to lands; correspondence; ephemera; news clippings; maps and plans; notes on biographical and administrative history; photographs; and artifacts.