Radiocarbon date reports have been scanned in multi-page PDF files.
History / Biographical
North Lauder Radiocarbon Date report by Beta Analytic Inc. for Flintstone Hill #111142 and #111143.
Radiocarbon dating
The technique of radiocarbon dating was developed by Willard Libby and his colleagues at the University of Chicago in 1949.
Radiocarbon dating is used to estimate the age of organic remains from archaeological sites. Organic matter has a radioactive form of carbon (C14) that begins to decay upon death. C14 decays at a steady, known rate of a half life of 5,730 years. The technique is useful for material up to 50,000 years. Fluctuations of C14 in the atmosphere can affect results so dates are calibrated against dendrochronology. Radiocarbon dates are calibrated to calendar years.
Dates are reported in radiocarbon years or Before Present. Before Present refers to dates before 1950. The introduction of massive amounts of C14, due to atomic bomb and surface testing of atomic weapons, has widely increased the standard deviation on all dates after A.D. 1700 causing these dates to be unreliable.
Accelerated mass spectrometry can more accurately measure C14 with smaller samples and can date materials to 80,000 years.
Scope and Content
Sub sub series contains radiocarbon dates from: Atkinson site and Flintstone Hill.
C. J. Barnes was born in Brandon, Manitoba in February 1884. His parents were native Nova Scotians who arrived in Brandon in the early 1880s. In 1884, the family settled on a homestead near the present town of Lauder. This homestead was sold in 1899, and the family moved to farm in the district of Medora. C. J. Barnes took over the operation of this farm in the early 1900s. He farmed until 1924. Barnes was educated in schools in the Truro School District and the village of Lauder. He was active in the original Territorial Grain Growers' Association.
Custodial History
This fonds was accessioned by the McKee archives in 1997. Prior custodial history is unknown.
Scope and Content
Fonds contains a pamphlet written and published by C.J. Barnes titled Seventy Years in Southwestern Manitoba. The pamphlet contains an account of life in rural southwestern Manitoba from the 1880s through to the 1940s. The pamphlet is based on a variety of sources including diaries written by Mr. Barnes' father. Fonds also includes some hand-drawn maps not included in the published version of the pamphlet, as well as four letters c.1962, between C.J. Barnes and Rev. Robert Harvey in his capacity as a columnist for the Brandon Sun.
