Her father, the Rev. Earl A. Pleasant, toured as a singer with his friend, Mahalia Jackson, and founded Mount Moriah Baptist Church near the Los Angeles Coliseum.
Margaret Douroux wrote her first song, "Give Me a Clean Heart," in 1970; and it caught on after it was introduced at a national gospel convention. Douroux went on to a catalog of more than 200 songs, many of which have been recorded by numerous artists and included in hymnals and songbooks. Her songse including "We’re Blessed" and "If It Had Not Been for the Lord on My Side." She remains active in her church music position and as a teacher, speaker, and guest musician.