Morris, Sylvia. "Shakespeare's mulberries: trees of history and legend", TheShakespeareBlog.com, 12 August 2013; Prendergast, Thomas A. Poetical Dust: Poets' Corner and the Making of Britain, University of Pennsylvania Press (2015), p. 186ISBN0812247507; and Hodgdon, Barbara. The Shakespeare Trade: Performances and Appropriations, University of Pennsylvania Press (1998), pp. 210–211, ISBN0812213890
Morris, Sylvia. "Shakespeare's mulberries: trees of history and legend", TheShakespeareBlog.com, 12 August 2013; Prendergast, Thomas A. Poetical Dust: Poets' Corner and the Making of Britain, University of Pennsylvania Press (2015), p. 186ISBN0812247507; and Hodgdon, Barbara. The Shakespeare Trade: Performances and Appropriations, University of Pennsylvania Press (1998), pp. 210–211, ISBN0812213890