Fonds consists of payroll books, herd register, sheep and cattle pedigrees, lists of sale, herd dispersion material, farm guest book, periodical material, newspaper clippings, 59 photoprints (includes 10 photoprints depicting farm in the aftermath of Hurricane Hazel, 1954) 3 postcards, and 6 wood-mounted printer's plates (1 of Southdown ewe, others of Angus and Jersey cattle herds); also includes videocassette copy of original 8 mm footage of commercial and other activity on the farm during the period 1939-1952.

Item consists of a draft manuscript detailing the history of Peter Patterson and Ruth's travels while researching said history.

Item consists of a photograph of Belle Beacon, the first cow to produce over 1000 lbs of butter at Don Head Farms, and 6 men identified as follows: left to right Art McKeown, head superintendant at Don Head Farms, Jim Brenna, Secretary of the Canadian Jersey Cattle Club, Mr. W. Redelmeier, owner of Don Head Farm, Bartley Bull, president of the Canadian Jersey Cattle Club, Cliff Graham, Deputy Minister of Agriculture, and Francis Redelmeier.

Collection consists of textual records, photographs, site plans and a photobook. Copies of Vaughan Township by-laws and petitions, correspondence of Peter Patterson (the founder of Patterson, Ont. and one of the proprietors and manager of the Patterson Works) and Redelmeier family, report concerning period structures remaining on present site, and newspaper clippings, published and unpublished essays relating to various aspects of Patterson's history, including one pertaining to the Patterson School, S.S. #19. Collection also includes plans of the hamlet, 1928 and 1936, as well as records re: history, activities, personalities, etc. of Don Head Farms. The collection includes five photographs depicting life on property, by then known as Don Head Farms, when it was an agricultural enterprize during latter part of Patterson ownership, and into the administration of W. Redelmeier and his sons (see below for further information); also noteworthy are 23 photographs copied from the Patterson Family Album depicting family members from the United States and Canada; as well as a photograph of Mrs. Peter Patterson, executed in 1866, and a photograph of the Patterson residence, ca. 1870. Additionally, photographic documentation of Patterson family related matters in Westfield, New York focusing on the Asa Farnsworth House, Holland Land Company, and "Old Cemetary" (where a number of family tombstones are depicted), as well as the town of Patterson, California are present. Collection is also notable for the presence of a number of record copies pertaining to the noted town of Patterson, California, a present-day municipality of some 7000 people incorporated in 1919, and adjacent ranch founded by T.W. Patterson, the nephew of Peter Patterson, during the mid-nineteenth century: Cartographic material, municipal by-laws, newspaper articles, correspondence, and legal documents and other documentation generated by the Patterson ranch. M008.4 accession is constituted of photocopies of Patterson and Bro Manufacturers

Item consists of an article on the Patterson family, firm and village.