Harley Manuscripts finding aid at the BL: http://hviewer.bl.uk/IamsHViewer/Default.aspx?mdark=ark:/81055/vdc_100000000046.0x00031c&_ga=2.59131946.666861722.1498647708-19792574.1498647708
In Royal Society, Cl.P 16/36, Humfrey Wanley's Observations of the invention of printing in manuscript: https://collections.royalsociety.org/dserve.exe?dsqIni=Dserve.ini&dsqApp=Archive&dsqDb=Catalog&dsqCmd=Browse2.tcl&dsqItem=Cl.P/16/36&dsqKey=RefNo
Julian Munby, "Humfrey Wanley and James Fish: The Apprentice Palaeographer and the Lost Manuscripts of St Mary's Warwick," Bodleian Library Record 25.2 (2012)
Stanley Gillam, "Humfrey Wanley and Arthur Charlett," Bodleian Library Record 16.5 (1999)
Colin Tite, Humfrey Wanley, William Hanbury and the Transfer of Papers from the Cotton Library to the Harley Collection (2013)
Helmet Gneuss, Humfrey Wanley Borrows Books in Cambridge, in Ashgate Critical Essays on Early English Lexicographers, Volume 2: Middle English, edited by Franzen, Christine, 431-446. Farnham, England: Ashgate, 2012.
The diary of Humfrey Wanley, 1715-1726; edited by C.E. Wright and Ruth C. Wright. (1966). Intro published simultaneously and separately as Humfrey Wanley and the Harleian Library, by C.E. Wright and Ruth C. Wright
From books to bezoars : Sir Hans Sloane and his collections