Photograph shows the hanger at the Commonwealth Air Training Plan Museum containing the displays of WWII-era planes. A Tiger Moth aircraft is on display.
Photograph shows the hanger at the Commonwealth Air Training Plan Museum containing the displays of WWII-era planes. A Lysander aircraft is on display.
Photograph shows the hanger of the Commonwealth Air Training Plan Museum where aircraft are on display. Bolingbroke and Stinson aircrafts are on display.
Radiocarbon date reports have been scanned in multi-page PDF files.
History / Biographical
North Lauder Radiocarbon Date report by IsoTrace Laboratory for Atkinson II site #TO-11882.
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.
[St. Joseph’s Academy provided education to the children of Brandon’s Catholic community and was overseen by its own Catholic school board. Non-secular school boards would be eliminated in Manitoba in 1890. (Mitchell, T. 1986. In the Image of Ontario: Public Schools in Brandon 1881-1890. Manitoba History, Number 12, Autumn 1986.)]
Custodial History
For custodial history see the collection level description of the Lawrence Stuckey collection.
Martin Wesley Johns was born to missionary parents Alfred and Myrtle Johns in Chengtu, West China on March 23, 1913. The family returned to Canada in 1925. Johns attended high schools in Tacoma, Washington; Vancouver, BC; Brandon, Manitoba; and Exeter, Ontario. He studied at Brandon College from 1928-1931 before obtaining his B.A. (1932) and M.A. (1934) from McMaster University and his Ph.D. From the University of Toronto (1938). From 1937-1946, he taught physics at Brandon College. In 1972, Brandon University awarded him an honorary Doctor of Science degree.
Johns served in the Canadian Officers Training Corps (C.O.T.C.) in 1940-1941 doing research concerned with neutron physics at Chalk River. In 1947, he joined the Physics Department at McMaster University, where he remained for the remainder of his career.
Johns married Margaret Mary Hilborn on July 15, 1939. Together they have four children: Robert, Elizabeth, Kenneth and Kathryn. Following Margaret's death c. 1979, Johns was married to Elsie North for twenty years. At the age of 90, Johns fell in love with his sweetheart Marian Thompson.
Martin Wesley Johns died on September 18, 2008 at McMaster Hospital.
Custodial History
The notebooks in accession 17-2007 were in the possession of Wesley Wong, former member of the Physics Department at Brandon College, who mailed them to Martin Johns in 2002. Wong suggested Johns donate them to the McKee Archives, which he did on January 28, 2004. The photographs in accession 8-2009 were sent to Carla Eisler, Alumni Relations Officer, Brandon University by Ken Johns (Martin Johns' son) following Martin's death. Eisler transfered them to the Archives in February 2009.
Scope and Content
Accession 17-2007 contains two lab record notebooks used by Martin Johns while he was a member of Brandon College's Department of Physics. The notebooks record class lists, grades, absences, and seating charts for courses Johns taught, as well as regulations for lab reports and major assignments.
Accession 8-2009 contains twenty-one black and white photographs dealing with Brandon College students, faculty and buildings. There a a few photographs of Brandon, as well as one of the Queen Mother from her visit to Brandon in 1939.
Notes
History/Bio information taken from the Martin W. Johns bio file in the Archives reading room.
