In researching our new poster for The Colored Concert Company we found one article by Josephine Wright, “Songs of Remembrance” from the Journal of African American History 91:4 [Fall 2006] p.413-424rs that mentioned the group in a footnote:
Three other African American musicians besides Robert Hamilton compiled and published text and music anthologies of Negro spirituals in the early 1880s: M. G. Slayton, ed.. Jubilee Songs, as Sung by Slayton’s Jubilee Singers (Chicago, 1882), 14 songs; Marshall W. Taylor, comp., A Collection of Revival Hymns and Plantation Melodies, Composition by Miss Josephine Robinson… (Cincinnati, 1882), 64 plantation songs; and Jacob J. Sawyer, air., Jubilee Songs and Plantation Melodies (Words and Music), as Sung by the Original Nashville Students, the Celebrated Colored Concert Company (N.p., 1884), 12 songs. Jacob J. Sawyer served ca. 1882 as pianist for Slayton’s Jubilee Singe
Otherwise, this celebrated organization is not mentioned in any of the major newspapers or magazines of the period. Not mentioned in the International Index to Black Periodicals; African American Music Reference http://aamr.alexanderstreet.com/; African American Newspapers: The 19th Century (1827-1882); the archives of the Center for Black Music Research, Columbia College, Chicago, http://www.colum.edu/cbmr/; or the The Harvard Guide to African-American History.
We did however have luck with the dating by matching the clothing in the index: http://www.marquise.de/en/1800/index.shtml).