Lighter - he certainly existed. Alan Lomax recorded from him and you can hear the recordings in his online archive. He didn't sing Scarborough Fair to Lomax though ... and there are no recordings of the song sung by Anderson by any other collectors. There are suspicions that MacColl altered the tune... it has some MacColl hallmarks... all very interesting and perhaps the subject of a future radio programme ... (or get hold of the relevant issue of English Dance & Song magazine!!)
Derek