Responding to the complaint of the dearth of listing of books of "authentic folk songs", I submit a few more:

Songs of the Sailor and Lumberman by William Main Doerflinger (1972 Macmillan Company, originally published in 1951 under the title "Shanteymen and Shantyboys")

Songs and Ballads of the Maine Lumberjacks with Other Songs from Maine by Roland Palmer Gray (1925, Harvard University Press)

Lore of the Lumber Camp by Earl Clifton Beck (1948, Univ of Michigan Press)

They Knew Paul Bunyan by Earl Clifton Beck (1959, Univ of MIchigan Press)

BAllads and Songs of the Shanty-Boy by Franz Rickaby (1926, Harvard Univ. Press)

Songs and Ballads from Nova Scotia by Helen Creighton (1966 Dover Publications, originally published 1932, J M Dent & Sons Ltd. )

Singing Our History: Canada's Story In Song by Edith Fowke and Alan Mills (1984 Doubleday Canada)

Ancient Ballads Traditionally Sung in New England, Correlated with the Numbered Francis James Child Collection. Volume I. Ballads 1-51. by Helen Hartness Flanders (1960, Univ. Pennsylvania Press)

Folk Songs of Old New England by Eloise Hubbard Linscott (1993 Dover reprint of 1962 second edition. First edition 1939 Macmillan Comapny)

American Labor Songs of the Nineteenth Century by Philip S. Foner (1975 Univ of Illiniois Press)

Songs of the Cowboys by N Howard (Jack) Thorp (1984 Univ Nebraska Press reprint of 1921 edition.)

Songs of the Cowboys by N Howard (Jack) Thorp. (1966 Bramhall House. Reprint of 1908 edition News Print Shop, Estancia, New Mexico with "Variants, Copmmentary, Notes and Lexicon by Austin E, and Alta S. Fife).

The Kingston Trio Vocal Album No. 2. (1959 Highridge Music Inc.)

Gotta go now

rich r