Wimbledon Park GC is a short stroll from Wimbledon Park tube! Not strictly tube, but when you come out of Mitcham Junction train / tram station you're basically in Mitcham GC's car park. Moor Park is indeed on the Met Line. Stanmore Golf Club is about a 10 minute walk from Stanmore tube at the end of the Jubilee line.
Trent Park pay and play is at the end of the Picadilly either across the road from Cockfosters or the station before it. Stanmore is probably more like 20 mins walk from that station. The course right next to Moor park is Sandy Lodge - Moor Park being a bit further away. East Finchley is very near a northern line station but not sure which, check thier website.