According to Lloyd Lewis’ genealogy notes, compiled from reports of various family members, Johanna Hayes and the rest of the family that had not yet emigrated to the United States, finally made the trip over the pond shortly after the death of her husband, Patrick Hayes.  According to a biography of Edward Hayes, a son who had arrived in the United States circa 1869, his father Patrick died in Limerick on April 15, 1875.  So far, I have been unable to find a Civil Death Record for him in that year.  But using that date as a starting point for searching, I began looking for a ship manifest that contained Johanna and one ore more known children of hers.  I soon found the following record.

Passenger: Johana Hayes
Arrival Date: 20 Sep 1875
Birth Year: abt 1820
Age: 55
Gender: Female
Ethnicity/Race­/Nationality: Irish
Place of Origin: Ireland
Port of Departure: Liverpool, England and Queenstown, Ireland
Destination: United States of America
Port of Arrival: New York
Port Arrival State: New York
Port Arrival Country: United States
Ship Name: Wisconsin

Also traveling with Johanna is a daughter named Brid. (Bridget), age 30 and a son name John, age 20.  The ages for all three passengers match the known ages of the Johanna, Bridget and John of Limerick, Ireland.  Based on these facts, it is safe to conclude that this passenger manifest positively identifies that that these three family members arrived in the United States on 20 September, 1875.