↑ A Catalogue of Authors Whose Works are Published by Houghton, Mifflin and Company. Houghton, Mifflin. 1899. p.123.
↑ John Hanners (1993). "It was Play Or Starve": Acting in the Nineteenth-century American Popular Theatre. Bowling Green State University Popular Press. p.9. ISBN9780879725877.
↑ Emil von Maltitz (1887). Geschichte der familie von Wrangel (in German). p.328.
↑ Edmund Lodge (1867). The Peerage and Baronetage of the British Empire as at Present Existing. Hurst and Blackett. p.600.
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