Ensign Tom P. Mahoney was a Starfleet officer during the Dominion War.
In 2374, a file from the starship USS Akagi reported Mahoney missing in action. A file from the USS Zapata reported him killed. (DS9: "In the Pale Moonlight")'
Mahoney's name appeared on the casualty list display seen on a computer readout in that episode. It is unclear which of the above was his home station, if any.