Seeking a soprano

A CACHE of 29 letters from John McCormack, written between 1905 and 1909 to the baritone JC Doyle, has recently come to light. I am editing them.

McCormack mentions about 20 singers in the course of the correspondence, including the soprano Agnes Treacy, with whom he appeared at the Antient Concert Hall in 1904 when James Joyce also sang; and in a ‘Messiah’ at the Royal University (now the National Concert Hall) in 1908.

Agnes Treacy made a number of ‘78’ records but I have been unable to locate a single one or any details as to her date of birth or death.