 In the mid or late 1970s, Collier suffered a stroke which paralyzed her on one side, rendering her unable to play the piano or organ.Collier's stroke did not diminish her singing ability, and she continued to sing and record occasionally until the 1990s.The group came together for a series of reunion concerts in 1981, commemorating a Smithsonian Conference on Roberta Martin, consisting of Eugene Smith, Norsalus McKissick, Archie Dennis, Romance Watson, Delois Barrett-Campbell, Louise McCord, Gloria Griffin, Bessie Folk, Lucy Smith Collier, and Richard Smallwood as accompanist.