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 #109900.
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.
The Brandon Assisted Passages Association was created in 1911, for the purpose of providing loans to "english speaking artisans" [sic] who wished to immigrate to Canada and work in Brandon, MB. In 1913, the Association was renamed the Brandon Imperial Home Reunion Association. The Association continued to operate and provided passage assistance in the form of loans to many immigrants until loan defaults mounted during World War I. After 1917, no further loans were given.
Custodial History
This fonds was accessioned in 1997. Its custodial history prior to this is unknown, but it was at one time in the posession of a H.R. Hoffman, and well as Richardson & Bishop Ltd. in Brandon.
Scope and Content
Fonds consists of a minute book and a single page letter. The minute book is a record of every meeting of the B.A.P.A./B.I.H.R.A. and includes the names of the board members, the names of the applicants (in some cases their addresses), and the amounts loaned. In some instances, the fonds provides a documentary record of loan repayment.
