Pen name was taken from his maternal grandfather. As Mark McGarrity he was the outdoors columnist for The Star-Ledger of Newark (New Jersey, USA).
Bartholomew Gill is the pseudonym of Mark McGarrity, who was not only an Irishman himself, but also a graduate of Trinity College in Dublin. Mr. McGarrity was born in Massachusetts and graduated from Brown University as well as the Irish college, however. As a journalist, he wrote for the Newark Star Ledger here in the United States. As a novelist, he wrote seventeen murder mysteries, all featuring Detective Superintendent Peter McGarr, of which Death In Dublin was his latest and last. Batholomew Gill, aka Mark McGarrity, was also a nominee for the Edgar Award. Mr. McGarrity spent part of his life between Dublin, Ireland, and Cranberry Lake, New Jersey.