Possibilities:
Martin Lee Byrne
New York, New York City Municipal Deaths, 1795-1949
birth: 1828 Ireland
death: 4 October 1888 Manhattan, New York, New York, United States
burial: 6 October 1888 New York, New York, New York
residence: New York, New York, New York
Mathew Leo O'Byrne
Ireland Civil Registration Indexes, 1845-1958
birth: April 1889 / June 1889 Dundalk, Ireland
Stephen Leo O'Byrne
Ireland Civil Registration Indexes, 1845-1958
birth: April 1896 / June 1896 Cork, Ireland
Leo O'Byrne
Ireland Civil Registration Indexes, 1845-1958
birth: January 1944 / March 1944 Dublin South, Ireland
mother: Eidd
Patrick Joseph Leo Fiacre O Byrne
Ireland Births and Baptisms, 1620-1881
birth: 30 August 1870 Tipperary, Ireland
father: John Count O Byrne
mother: Elleanora De Habna