Do you have a Bridget Byrne that is related to Charles Byrne. Bridget Byrne, along with William Lane, are listed as sponsors for my great-great-aunt Mary Ellen Walsh at her baptism. Mary was:

the daughter of Mary Ryan & Martin Walsh
Born: July 4, 1865
Baptized: July 16, 1865
Place of birth: Bridgeport CT

The baptism was performed at St. Augustine's in Bridgeport CT. Fr. Thomas J. Synnott, who performed the baptism, was somehow related to Mary Ryan & Martin Walsh. My 91-year-old grandmother doesn't remember how.

Any connection that you can see? Thanks!