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.
Hermas
1 verse
Romans
Romans 16:14
Salute Asyncritus, Phlegon, Hermas, Patrobas, Hermes, and the brethren which are with them.
From Easton's Bible Dictionary
Matthew George Easton, 1897
From Smith's Bible Dictionary
William Smith, 1884
(Mercury), the name of a Christian resident at Rome to whom St. Paul sends greetings in his Epistle to the Romans. (Romans 16:14) (A.D. 55.) Irenaeus, Tertullian and Origen agree in attributing to him the work called The shepherd . It was never received into the canon, but yet was generally cited with respect only second to that which was paid to the authoritative books of the New Testament.