National Museum of Wales, Lewis, John Masters, Savory, H. N. (Hubert Newman), Boon, George C. (George Counsell), 1927-, Lewis, J. M. (John Masters), 1926-, 1976

National Museum of Wales, Williams, David H. (David Henry), 1933-, Lewis, John Masters, 1976

Lewis, John Masters, 1978

National Museum of Wales, Lewis, John Masters, 1974

National Museum of Wales, Lewis, John Masters, Broadbent, Eric, 1976

Redknap, Mark, Lewis, John Masters,

National Museum of Wales, Williams, David H. (David Henry), 1933-, Lewis, John Masters, Williams, David Henry, Williams, David H., 1976

Lewis, John Masters, Redknap, M. (Mark), 2005

National Museum of Wales, Lewis, John Masters, Savory, H. N. (Hubert Newman), Boon, George C. (George Counsell), 1927-, 1976

Lewis, John Masters, 1978

Lewis, John Masters, Redknap, M. (Mark), 2005

National Museum of Wales, Lewis, John Masters, Savory, H. N. (Hubert Newman), Boon, George C. (George Counsell), 1927-, 1976

Redknap, Mark, Lewis, John Masters,

National Museum of Wales, Lewis, John Masters, Savory, H. N. (Hubert Newman), Boon, George C. (George Counsell), 1927-, Lewis, J. M. (John Masters), 1926-, 1976

National Museum of Wales, Lewis, John Masters, Broadbent, Eric, 1976

Lewis, John Masters, 1982

National Museum of Wales, Williams, David H. (David Henry), 1933-, Lewis, John Masters, 1976

National Museum of Wales, Williams, David H. (David Henry), 1933-, Lewis, John Masters, Williams, David Henry, Williams, David H., 1976

National Museum of Wales, Lewis, John Masters, 1974

National Museum of Wales, Amgueddfa Genedlaethol Cymru, Lewis, J. M. (John Masters), 1926-, 1978

Lewis, J. M. (John Masters), 1926-, Cardiff Naturalists' Society,

National Museum of Wales, Savory, H. N. (Hubert Newman), Boon, George C. (George Counsell), 1927-, Lewis, J. M. (John Masters), 1926-, 1976

Lewis, J. M. (John Masters), 1926-, Brownsword, R., Pitt, E. E. H., 1980

National Museum of Wales, Lewis, J. M. (John Masters), 1926-, Broadbent, Eric, 1976

National Museum of Wales, Lewis, J. M. (John Masters), 1926-, 1974

Lewis, J. M. (John Masters), 1926-, Wrathmell, Stuart, Vyner, Blaise, University College, Cardiff. Department of Extra-Mural Studies, 1987

National Museum of Wales, Amgueddfa Genedlaethol Cymru, Lewis, J. M. (John Masters), 1926-, 1999

Lewis, J. M. (John Masters), 1926-, Brownsword, R., Pitt, E. E. H., 1984

Lewis, J M,

Lewis, J M, Boon, George C, 1976

Lewis, J M, James, N A, 1987