When he joined a theatrical troupe in New York City , he was soon in demand as a leading man .
Brian , a tenor , was employed in a Boston machine shop and , at the age of 16 , began performing with a vocal quartet .
When Brian joined a theatrical troupe in New York City , Brian was soon in demand as a leading man .
Brian , a tenor , was employed in a Boston machine shop and , at the age of 16 , began performing with a vocal quartet .