[5] She paid for voice lessons by writing newspaper advice columns under the name Florence Bryant, including childrearing advice; "You know a lot when you're 16, you have a lot of theories," she explained of her qualifications.

[1] Mario made her stage debut with the San Carlo Opera Company in 1918.

"[8][9] Mario taught voice at the Juilliard School in New York and the Curtis Institute of Music in Philadelphia.

Among her students were Jeanne Madden,[10] Frances Bible,[11] Helen Jepson and Rose Bampton.

[14] Mario married Metropolitan Opera conductor Wilfred Pelletier on November 23, 1925; they divorced on August 12, 1936.