M. Rush was the name for several Human Starfleet officers in the 22nd century.
(1.) M. Rush was named as an Imaging and sensor technologies officer on the dedication plaque of the Enterprise NX-01. (ENT: "Broken Bow", dedication plaque)
(2.) M. Rush was named as a Propulsiion Systems officer on the dedication plaque of the Columbia NX-02. He was named as a Booster Systems officer on the directory placards at the Fleet Operations Center, Sol Sector. His office was in room #1319. (ENT: "Affliction", dedication plaque; ENT: "Demons", directories)
(3.) M. Rush was named as a Propulsion System officer on the dedication plaque of the Columbia NX-02. He was named as an APO officer on the directory placards at the Fleet Operations Center, Sol Sector. His office was in room #1335. (ENT: "Affliction", dedication plaque; ENT: "Demons", directories)
(4.) M. Rush was named as a Flight Director on a directory placard at the Fleet Operations Center, Sol Sector. His office was in room #1039, which he share with fellow Flight Director Peter Lauritson. (ENT: "Demons", directories).