John Masters Lewis (Lewis, John Masters)

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  Studies in Medieval and Later Pottery in Wales: Presented to J.M. Lewis
  by Blaise Vyner, Stuart Wrathmell, John Masters Lewis, University College, Cardiff, Department of Extra-Mural Studies Staff
  Softcover, University of Wales, Cardiff Department for Continuing Education, ISBN 0946045321 (0-946045-32-1)
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  Welsh Antiquity: Essays Mainly on Prehistoric Topics Presented to H.N. Savory upon His Retirement As Keeper of Archaeology
  by H. N. Savory, George C. Boon, J. M. Lewis, National Museum of Wales Staff
  Hardcover, National Museum of Wales (Amgueddfa Genedlaethol Cymru), ISBN 0720000963 (0-7200-0096-3)
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  Welsh Medieval Paving Tiles
  by J. M. Lewis, Eric Broadbent, National Museum of Wales Staff
  Softcover, National Museum of Wales (Amgueddfa Genedlaethol Cymru), ISBN 0720000572 (0-7200-0057-2)
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  Welsh Monumental Brasses
  by J. M. Lewis
  Softcover, National Museum of Wales (Amgueddfa Genedlaethol Cymru), ISBN 0720000548 (0-7200-0054-8)
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  The White Monks in Wales ...: [catalogue] of an Exhibition Held at the National Museum of Wales 24 April-23 May 1976 to Mark the 750th Anniversary of the Foundation of Grace Dieu Abbey, Gwent, on 24 April 1226
  by J. M. Lewis, David H. Williams, National Museum of Wales Staff
  Hardcover, National Museum of Wales (Amgueddfa Genedlaethol Cymru), ISBN 0720000939 (0-7200-0093-9)