Kammala jumla mai zuwa: Daga Afrilu zuwa Mayu 1862 Greene ya ci gaba da aiki a matsayin babban jami'in a "Monitor" a lokacin
Yaƙin Drewry's Bluff a kan Kogin James, Virginia, kuma daga baya ya ba da tallafin ruwa ga sojojin Janar McClellan a ƙasa tare da wannan kogin. Greene ya kasance a cikin jirgin lokacin da ya kafa a cikin guguwa mai nisan mil 20 daga Cape Hatteras a ranar 31 ga Disamba <unk> 1 ga Janairu, 1863, wanda Greene ya tsira bayan da likitan jirgin ruwan, Dr. Grenville M. Weeks ya jawo shi cikin jirgin ruwa.