Updated alphabetized list, with a few additions that haven't been mentioned yet in separate posts:

Declan Affley
Gerry Armstrong
Clarence Ashley
Alex Atterson
Cliff Aungier
Hoyt Axton

Long John Baldry
Charlie Bate
Bob Beers
Evelyne Beers
Dominic Behan
Paddie Bell
Peter Bellamy
Steve Benbow
Bob Bertram
Rachel Bissex
Bob Blue
David Blue
Harry Boardman
Hardtack Bob
Raphael Boguslav
Mark Bolan
Ciaran Bourke
Jumbo Brightwell
Tim Buckley
Jeff Buckley
Billy Buntline
Robert Byrd

John Allan Cameron
Hamilton Camp
Alex Campbell
Tony Capstick
Roger Carmen
Barbara Carns
Anita Carter
Dave Carter
Helen Carter
June Carter Cash
Johnny Cash
Harry Chapin
George Chudakoff
Bobby Clance
Liam Clancy
Paddy Clancy
Tom Clancy
Paul Clayton?
Vassar Clements (fiddler)
Buzz Collins
Johnny Collins
Ted Comben
Graham Cooper
Susan Contento
Libba Cotten*
Brian Crawford
Jim Croce

Cyril Davies
Jinx Davis
Reverend Garry Davis
Jeanine Deckers**
Maureen Delgrosso
Sandy Denny
John Denver
Erik Darling
Bud Dashiell
Diz Disley
Denny Doherty
Lonnie Donegan
Malcolm Douglas
Nick Drake
Johnny Duncan
John Dunkerley
John Dwyer

Jonathan Eberhart
Travis Edmundson
Cass Elliott
Freyda Epstein
Tommy Eytle

Richard Farina
Mimi Baez Fariña
Jackson C. Frank
Focslehead Fred
Louie Fuller


Jerry Garcia
Fred Gerlach
Bob Gibson
Terry Gillikson
Joe Glazer
Tom Glazer
Cynthia Gooding
Steve Goodman
Lou Gottlieb
Davy Graham
Cy Grant
Dave Guard
Roy Guest
Isaac Guillory
Woody Guthrie

Cliff Hall
Robin Hall
Tim Hardin
Tim Hart
Frank Harte
John Hartford
Bess Lomax Hawes
Ted Hawkins
Mary Ann Haynes
Lee Hays
Hamish Henderson
Joe Heaney
John Herald
Merritt Herring
Walter Hiatt
Lizzie Higgins
Sam Hinton
Fred Holstein
Gilbert (Cisco) Houston
Mississippi John Hurt*
Joy Hyman

Queen Caroline Hughes
Stan Hugill
Alistair Hulett

Hamish Imlach
Brian Ingham
John Isherwood
Burl Ives*

Jill Jackson (Miller)
Stan James
Orville Jenks
Craig Johnson
Brian Jones
Fred Jordan
Vera Johnson
Adrienne Johnston

John Kahn
Rick Keeling
Jo-Ann Kelly
Sylvia Kelly
Denis Kevans
Jacko Kevans
Alexis Korner
Bob Kotta
Danny Kyle

Mary LaMarca
Millard Lampell
Eamonn Largey
Kathleen Largey
Bob Lynch
Geri Lobl
Alan Lomax
Wendy Lowenstein
Bert Lloyd


George Maynard*
Sarah Makem
Tommy Makem
Haywire Mac
Margaret MacArthur
Ewan MacColl
Josh MacCrae
Alex MacEwan
Rory MacEwan
Gerry MacMahon
Miriam Makeba
Bogan Martin
John Martyn
Derek McCormack
Kate McGarrigle
Matt McGinn
Gordon McIntyre
Jimmy McKinley
Ed McCurdy
Lionel McLelland
Francie McPeake
John Meredith
Alan Mills
Richard Mills
Bill Monroe
Old Man Mose
John Murphy

Fred Neil
Pat Nelson
June Nichols
Roger Nicholson

Phil Ochs
Bridie O'Donnell
Odetta
Brian Osbourne

Don Partridge
Sandy Paton
John Pearse
John Phillips
Utah Phillips
Bill Price
Frank Purslow

Russell Quaye

Gene Raskin
Nick Reynolds
Jon Rennard
Susan Reed
Jim Reid
Ralph Rinzler
Jeannie Robertson
Walt Robertson
Paul Robeson
Stuart Robinson
Jimmie Rodgers (The Singing Brakeman)
"Big" Pete Roger
Gamble Rogers
Grant Rogers
Stan Rogers
Tony Rose

Hazel (King) Sarjeant
Pete Sayers
Martha Schlamme
Helen Schneyer
Richie Schulberg
Alan Scott
Colin Scot
Willie Scott
Al Sealey
Mike Seeger
Rod Shearman
Irwin Silber
Nina Simone
Shel Silverstein
David Spence
Bob Spray
Jo Stafford
Art Stamper
Belle Stewart
John Stewart
Walkin' Jim Stoltz
Don Stover
Redd Sullivan
Yma Sumac

Phil Tanner
Cyril Tawney
Sonny Terry
Artie Traum
Mary Travers

Harry Upton

Dave Van Ronk
Townes Van Zandt
Mervyn Vincent

Terry Wadsworth
Don Walser
Vaughn Ward
Merle Watson
Rowan Webb
Hedy West
Josh White
Wally Whyton
Hank Williams
Roy Williamson
Frank Winter
Royston Wood
Martin Winsor
Vikki Williams
Kate Wolf
Brenda Wootton
Jonathan Wootton
John Wright

Warren Zevon


*would be 100 y.o. or older now
** Sister Luc Gabriel, Soeur Sourire, "The Singing Nun"