I too was at Brentwood School (1956-62), but cannot ,unfortunately remember Nigel Patterson or the Halliards . But i can affirm that Paul |Simon was living in Brentwood around that time. He was staying with Dave Mac Causland at his family's house and sung at the Brentwood Folk club that Dave was running at the Railway Tavern opposite the station. Dave had set up the club in 63 or 64 after we had met Paul in Paris I think he sang regularly there, almost as resident.