The fonds consists of Dr. Van Arsdale Blakslee's personal and medical business receipts between the years of 1915 and 1940. There are receipts for medical supplies, tax receipts, and personal receipts such as household bills and car repairs. Many of the medical supply invoices are for products shipped by mail from Toronto or Montreal. Some of these companies in Toronto include: J.F Hartz Co. Limited, Ingram Bell, Ethical Drug Products Limited, and from Montreal Frank W. Horner Limited, Manufacturing Chemists. The majority of the receipts are from local businesses in Belleville and surrounding areas such as: F.W Jeffery Harware Merchant, Midland, Ontario, F.S Anderson Co. Genuine Scranton Coal, W.H Lattimer Druggist Belleville, Sprague the Cleaner, Greenleaf's Garage Machine Shop Foundry Electrical Contractors, R. Oliphant Son Butchers, McLaughlin Motor Car Company, Quinte Bicycle Store, The Belleville Pharmacy, E.D Finkle Electrical Contractor, J.S McKeown The Prescription Druggist, Porter, Butler and Payne Barristers, Solicitors Notaries Public etc. The Belleville Vulcanizing Co. J.T Warren Chevrolet Garage, Ed. F. Dickens Son Bakers and Confectioners, Smith Hardware, Chas J. Symons Gents Furnishings, Hats Caps, A.B Liddle Tailoring, Cleaning, Pressing, Repairing and many more. There are also household bills from the Belleville Gas Department, Belleville Water Works Department, Bell Telephone, Hydro Electric Power Commission and tax receipts from various years.