William Flaherty had a brother Martin. Martin married a Bridget Connolly which is confusing because their mother was a Bridget Conneely. I found Martin and a few of his children--check my tree under Carrollfamily. There were lots of Flahertys in South Boston. Do you know when Martin died? If Martin is William's brother I found him as late as 1940 along with most of his children. See if you think it's him.