In 1965, Barker returned to New Orleans and took up a position as assistant to the curator of the New Orleans Jazz Museum. In 1970 he founded and led a church-sponsored brass band for young people—the Fairview Baptist Church Marching Band—which became popular. Reverend Andrew Darby, Jr., the Pastor of Fairview Baptist Church commissioned 'Brother' Barker to form a Christian band, and Barker went throughout the neighborhood of the church enlisting young musicians. The Fairview band launched the careers of a number of professional musicians who went on to perform in brass band and mainstream jazz contexts, including Leroy Jones, Wynton Marsalis, Branford Marsalis, Kirk Joseph, Nicholas Payton, Shannon Powell, Lucien Barbarin, Dr. Michael White and others. As Joe Torregano—another Fairview band alumnus—described it, "That group saved jazz for a generation in New Orleans."