My Hyland Family from Avoca and possible Ballymore Eustace

My Hyland Family
Patrick Hyland left Avoca around 1873 to move across the water to Widnes. He was my great grandfather.
I was looking for his marriage record in Avoca to Johanna Pendergast – but could not find it. I could find the christening of his daughters Roseanna and Mary who both died in infancy. I knew where the family home was now a ruin opposite the Avoca Weavers. Patrick and his father, Joseph, were both copper miners in the Avoca mines.
They must have got married mustn’t they? I did a completely random search and this morning received a copy of their marriage certificate in St. Bees, Whitehaven, Cumbria with an address in Egremont. Patrick was now an iron miner.
So the time line seems to read….
Married 1869 in St. Bees, headed back to Avoca for the birth of Rosanna – she was christened there a year after the marriage so 1870, then came Mary and both children died. Then Marcella, who survived. By 1874 the couple with Marcella are in Widnes where my Grandad was born. So backwards and forwards across the water, with Patrick looking for work.
I then looked around (online) Egremont, and found another Patrick Hyland born in the town c 1865 – he too was an iron miner, but he also left with his family and went to Salt Lake City, Utah, searching for gold ( got him on the US Census).
SO……
My question is, was this Patrick related to my Patrick? One might assume so, but how…..
I would love to hear from anyone in Wicklow who might know of some of the backstory to my family.
I live in Devon, England, but I was over in Enniscorthy a couple or three years ago and managed to visit Avoca and see the ruins of the cottage…..

best wishes

Mary Hyland