Information has come from "Bermuda Index 1784-1914.Page 847 Not sure if these are your relation or not.
David Mahoney of Ireland Island Bermuda married Mary Jane Ingham, (3rd daughter of Joseph E. Ingham) on January 25 1855 married in Southampton Bermuda, by Rev R. Hoare.
David Mahoney, age 27, a native of Ireland,died of fever at Boaz Island Bermuda,Oct 19 1856.
Mary Loretto Mahoney, elder daughter of the late John Carter Mahoney of Baltimore, married Capt.Josiah Jones, Ordnance Store Department,he was a bachelor,(and son of William Jones of Hammersmith, London,)on January 30 1889 in Hamilton Bermuda. There are other references to Mahoney will send if info is relevent.