MARTIN'S-ST, a hamlet, in that part of the parish of ST-MARTIN-HAVERFORDWEST, which is in the hundred of RHOS, county of PEMBROKE, SOUTH WALES, a mile (rr. W.) from Haverfordwest; containing 309 inhabitants. It is bounded on the east by the West Cleddy, on the north by a -stream which flows into that river, and on the south by an extra-parochial common designated the Poor.. field. The rateable annual value of the property in the hamlet has been returned at £2360. 4. Here is situated the county gaol.