Great folk LPs (that I've missed) from the 1970s and thereabouts: a preliminary list

Peter Bellamy (and the Young Tradition): several
Shirley Collins (with or without Dolly Collins): several

Albion Country Band: the Battle of the Field
Frankie Armstrong: Lovely on the Water
Dave and Toni Arthur: Morning stands on tiptoe
Dave Burland: Dalesman's Litany
Martin Carthy: Prince Heathen (and others)
Pete & Chris Coe: Out of Season,out of Rhyme
The Dransfields: The Rout Of The Blues
Jim Eldon: I Wish There was No Prisons
Derek and Dorothy Elliot: first album
Ray Fisher: The Bonny Birdy
Bob Fox and Stu Luckly: Nowt So Good'll Pass
Dick Gaughan: A Handful of Earth (and others)
John Goodluck: The Suffolk Miracle
Roy Harris: The Bitter and the Sweet
Louis Killen: Ballads and Broadsides
John Kirkpatrick & Sue Harris: Among the many attractions at the show will be a Really High Class Band (and others)
Muckram Wakes: A Map of Derbyshire
Lea Nicholson: Horsemusic
Roger Nicholson, Jake Walton and Andrew Cronshaw: Times and Traditions for Dulcimer
Maddy Prior and Tim Hart: Summer Solstice

That's 20, which is probably enough to be getting on with... but if anyone wants to nominate the Watersons album (to name but one), or ask how I could possibly have overlooked the great Frank Fonebone, have at it!