Stephen R Cosh FSA (b 1950) studied archaeology at Reading University, and has since specialized on Roman villas and mosaics, and their illustration. He embarked on the Romano-British mosaic corpus project with David Neal from 1993. Reading University conferred on him the degree of Doctor of Letters in 2006.
David S Neal FSA (b 1940) began his archaeological career 1957 assisting with the excavations at Verulamium. From 1961 he worked for the (then) Ministry of Works as an archaeological illustrator, and in 1975 became full-time archaeologist with (what became) English Heritage, on his retirement joining Stephen Cosh in the writing and illustration of the mosaic corpus from 1993. He was awarded the degree of Doctor of Letters in 1992.