I am researching the Edwards family for my Dad's Cousin who married John Edwards a descendant of Hiram Edwards.
One bit of information that may help is that the inscriptions on the back of the family coat of arms has Elizabeth Ann Jones as the daughter of Louisa Edwards & John James Jones. I have yet to find any info on her just her brother William Henry and sister Fanny Edwards Jones.
Louisa is Hiram's sister so its very possible Elizabeth Ann Jones married a relative of her Aunt Catherine Mary Byrne. It says Hiram married Catherine Mary (Kate) Byrne third daughter of Edward Byrne J.P. of Sallow Snova, county Roscommon.
Really glad to have found this thread..
Gary