[3] While still a senior at Englewood High School, DeLois was recruited by The Roberta Martin Singers, a seminal group from the Pilgrim Baptist Church that was known for its stellar roster of lead male voices, notably Robert Anderson and Norsalus McKissick.
She toured and sang with the troupe until the early 1960s, when Ms. Martin encouraged her to begin an independent recording career in a trio with her sisters and as a solo artist.
The Barrett Sisters represented the United States in Africa, as Goodwill Ambassadors of 1983, and in the South Pacific for six weeks in 1987.
The Barrett Sisters are associated with numerous celebrities and big names in entertainment including the late Queen of Gospel Albertina Walker, Dorothy Love Coates, Thomas A. Dorsey (National Singers Convention), Rev.
James Cleveland, Andraé Crouch, The Mighty Clouds of Joy, Shirley Caesar, The Clark Sisters, The Winans, Willie Mae Ford Smith, Jennifer Hudson, and Patti LaBelle.
The Barrett Sisters are featured in the Gaither Gospel Series videos "Rivers of Joy"(1998) and "Build A Bridge" (2004), which was filmed at The Potter's House in Dallas, Texas.
[11] As a member of The Roberta Martin Singers, DeLois traveled around the United States and the world singing for the Lord, but she soon placed her career on hold to start her family.
DeLois had her last annual birthday concert celebration at First Church of Deliverance in Chicago, that included performances with her sisters Billie and Rodessa.
[12] She had been wheelchair bound for years, had battled arthritis and other health issues, and lost her voice in late 2009, but she was still present during some of the concerts with a microphone in her.