Some books in my collection, can be accessed online or in libraries:

Books by Albert E. Brumley:
All Day Singing
America's Memory Valley
Christian Hymnsongs
Great Inspirational Songs
Lamplighting Time in the Valley
Olde Time Camp Meeting

Books by George Pullen Jackson:
Down-East Spirituals and Others
Spiritual Folksongs of Early America
White Spirituals of the Southern Uplands

Gospel Hymns Consolidated @ 1886, Bigelow and Main, combines hymns by Moody, Samkey, P.P.Bliss and others

Heavenly Highway Hymns, Shape Note Edition, Stamps-BaxterMusic and Printing Co., 1956 printing

Johnson and Johnson, Book of American Negro Spirituals

John Work, American Negro Songs and Spirituals

Jeremiah Ingalls, Christian Harmony, 1805, 2005 reprint

Rise Up Singing has several categories, lyrics and chords, reference to recorded works

Charles