Mary was featured on the cover of "Billboard" magazine in a story hailing her as "a firm favorite to join the heavy-hitting ranks of such Irish artists as Enya, Sinéad O'Connor and Clannad's Máire Brennan in the international marketplace". Her next album "The Holy Ground" once again reached the top of the Irish album chart. She also toured the US during October/November 1993, in support of the album. The next project saw Mary join forces with six Irish female artists to record the compilation album, "A Woman's Heart". Other artists here included her sister Frances Black, Eleanor McEvoy, Dolores Keane, Sharon Shannon and Maura O'Connell. Its good sales success spawned another album, "A Woman's Heart 2".