My Shay(Shea) great-grandfather came to Chicago in 1853 supposedly from County Mayo.
The godmother of my great-uncle Dennis (1858) was Bridget Tracey. The godmother of grandfather Cornelius (1869) was Johanna Tracey. This family lived in the Old St. Pat's parish from 1855 until around 1875 when they moved to Holy Family.My great-grandmother was born around 1837.
Perhaps they came from the same part of Mayo which I am struggling to find.
I will see what I can find regarding Traceys at Calvary Cemetery where our family is buried.