Hermas
Mercury, a Roman Christian to whom Paul sends greetings (Rom. 16: 14). Some suppose him to have been the author of the celebrated religious romance called The Shepherd, but it is very probable that that work is the production of a later generation.
M. G. Easton, Illustrated Bible Dictionary, 3rd edition (1897). Public domain; text from the Christian Classics Ethereal Library. A nineteenth-century Protestant reference: its dates, archaeology and judgements reflect the scholarship of its time and are not Imago Dei's editorial position.