Bill Leader

Bill Leader is an English recording engineer and producer. He is particularly associated with the British folk music revival of the 1960s and 1970s, producing records by Davey Graham, Bert Jansch, John Renbourn and others. Article continues on Wikipedia

The others include a large number of singers of traditional songs, but more importantly, Bill Leader was instrumental in releasing recordings of traditional singers and musicians from both sides of the Atlantic.

See Leader Records