Efe Sodje played for Nigeria against England in 2002 (Japan & Korea). He also played for Macclesfield Town against Boston. Two of his younger brothers more recently got caught up in the match fixing allegations.
Gordon Banks and Geoff Hurst both won the World Cup, and both managed Telford United. Though I'm not sure if either of them were in charge at Telford during matches against Boston.
Andy Townsend played for Weymouth and Welling, and was later part of the Republic of Ireland World Cup Squad.
Mark Lawrenson played two games for Barnet, one of which was against Boston. I'm not sure he ever played in a World Cup, but he will certainly have commentated at World Cups!
Peter Beardsley has played for England at World Cups and has been to a sportsman's dinner at the Pilgrim Lounge!