Perry Green (11/4 mile S.E. from Hadham Station, G.E.R.) is a small scattered hamlet.

Peter’s Green, on the Beds border, lies at the meeting of several roads; the Half Moon and Rising Star with a few cottages comprise the hamlet.  The descent W. towards Chiltern Green Station, M.R., commands a fine view, looking towards Luton Hoo Park.  The several ways (one is hardly more than a lane) lead S.E. to Kimpton, S. to Harpenden, N. to Lawrence End Park, and N.E. to Breachwood Green and Bendish.

Piccotts End is passed when going from Hemel Hempstead to Great Gaddesden.  It is on the river Gade, at the N.E. extremity of Gadesbridge Park.

Pin Green (11/2 mile E. from Stevenage Station, G.N.R.) lies between the Great North Road and the river Beane.

PIRTON (31/2 miles N.W. from Hitchin) is an ancient village on the Beds border, said to owe its name to one Peri, who possessed it in Saxon times.  William I. gave it to Ralph de Limesie, or Limesy, who founded the church and gave the tithes of it to the Abbey of St. Albans.  The site of the castle built by Ralph is thought to be at Toot Hill, W. from the church, where a moat may be traced.  The church was originally cruciform, but the transepts have long disappeared; the tower, massive and embattled, still standing between nave and chancel.  Restoration has been carefully carried on recently; the tower was rebuilt in 1877, but some Norman work may still be traced in its arches.  Note (1) monument and curious inscription to Jane, wife of Thomas Docwra (d. 1645); (2) double piscina, fourteenth century, in S. wall of chancel.

Pirton should be visited for the fine old houses in its neighbourhood. High Down, S. from the church, is Elizabethan, with gables, twisted chimneys and mullioned windows; it was formerly the home of the Docwras. Pirton Hall, on a hill N.W. from the village, is also Elizabethan, and the Rectory Manor House and Hammond’s Farm are both ancient.  In the latter is some fine old carved oak.

Plummers is 11/2 mile S.W. from Knebworth Station, G.N.R.  It consists of a few cottages.

Ponfield lies between Bedwell and Bayfordbury Parks.  It is a small hamlet nearly 2 miles S.E. from Cole Green Station, G.N.R.

Poplar’s Green is on the river Maran, on the W. edge of Panshanger Park.  The old church at Tewin is less than 1 mile N.W.  The station is Cole Green.

Potten End (2 miles N.E. from Berkhampstead Station, L.&N.W.R.) has a modern chapel-of-ease to Nettleden (1 mile N.).  The hamlet is prettily situated between the rivers Gade and Bulbourne.

PRESTON (4 miles W. from Stevenage Station, G.N.R.) is a hamlet beautifully situated on high ground.  The Church of St. Martin is a small building a few yards W. from the green, a modern erection; close by is the Bunyan Chapel, and 1/2 mile N. is Bunyan’s dell, where the author of the Pilgrim’s Progress often preached. Temple Dinsley, a manor house a little E. from the Red Lion, stands on the site of the preceptory of the Knights Templars, founded by Bernard de Baliol in the reign of Stephen.