The Harrow School Register, 1801-1893, edited by Reginald Courtenay Welch; London, Longmans, Green, 1894, page 217, https://books.google.ca/books?id=HGHI9c5N2KAC&pg=PA217&lpg=PA217&dq=charles+james+hamilton#v=onepage&q=charles%20james%20hamilton&f=false.
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