D. Rooney was a Human Starfleet officer in the 22nd century.
In 2151, she was named as a Starfleet Command officer on the dedication plaque of the Columbia NX-02. (ENT: "Affliction", dedication plaque)
In January of 2155, she was named as a Test Conductor on directory placards at the Fleet Operations Center, Sol Sector. Her office was located in room #1113. (ENT: "Demons", directories)
D. Rooney was named after
Enterprise production associate Donna Rooney.