Library: Students working on Brandon and the Great Depression project. L to R: unidentified female student, Bruce Stadfeld, unidentified female student.
Radiocarbon date reports have been scanned in multi-page PDF files.
History / Biographical
North Lauder Radiocarbon Date report by IsoTrace Laboratory for Atkinson site #TO-10640.
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.
Bertha Cunningham is a Western Manitoban artist who has studied at the Banff School of Fine Arts several summers and has painted in Winnipeg for periods under the guidance of members of the School of Fine Art. She paints mainly landscapes. (1969 inventory)
Dimensions
49.5 X 60.5 cm
Size Overall
63 X 73 cm
Medium
oil
Condition
Brown accretion marks on left frame arm, as well as mild brown accretion mark in TL corner of frame.
View is west to McDiarmid Drive from approximately 16th Street between Princess and Louise Avenues. Photograph shows: Brandon College, Fleming School, Coronation Park, and West End Community Centre.
Image shows the Brandon College campus from 17th Street looking southwest. The photo was taken after the completion of the original Music Building in 1963, but construction of the Education Building. Also visible are a number of properties on the 200 block of 18th Street and the 200 block of 20th Street.
View is east from approximatley 22nd Street between Lorne and Louise Avenues. Photograph shows: Darrach Hall, Flora Cowan Hall and the Citizens' Science Building, as well as a number of homes in the area.