John Newbery (1579, 1580-1582, 1583-1584)

From the Silk Road site
(http://www.silk-road.com/artl/srtravelbib.html):

Primary sources:

"Two Voyages of Master John Newberie...," in Samuel Purchas, ed., Hakluytus Posthumus or Purchas His Pilgrimes Contayning a History of the World in Sea Voyages and Lande Travells by Englishmen and others, 20 vols. (Glasgow, 1905-1907), Vol. VIII, pp. 449-481.

"Two Letters of M. John Nubery, relating his third and last Voyage...," in Purchas, Hakluytus Posthumus, Vol. IX, pp. 493-496, "followed by letters of John Eldred with references to Newbery".(http://www.silk-road.com/artl/srtravelbib.html)

Richard Hakluyt, comp., The Principal Navigations Voyages Traffiques & Discoveries of the English Nation, 8 vols. (London, etc., 1927; various earlier eds.), Vol. 3, pp. 271-275 (Newbery's letters), "followed by Fitch materials and the second-hand account about Newbery by Lischoten, the famous Dutch traveler and publisher of travel accounts".(http://www.silk-road.com/artl/srtravelbib.html)

J. Courtenay Locke, ed., The First Englishmen in India: Letters and Narratives of sundry Elizabethans written by themselves... (London: Routledge, 1930). "Reprints from Purchas and Hakluyt all the Newbery letters and the relevant Eldred, Fitch and Linschoten materials, but not the Newbery account of his first two trips." (http://www.silk-road.com/artl/srtravelbib.html)

Secondary source:

William Foster, England's Quest of Eastern Trade (London: Black, 1966; repr. of 1933 ed.), Chs. 7-8.