Hondo McDuff was a Human woman, an engineering officer who served in Starfleet aboard the USS Enterprise in the late 2260s.
History[]
In 2269, Nyota Uhura assumed command of the Enterprise after transmissions of a Taurean lura-mag device incapacitated all male personnel aboard the ship. The engineering department tried to adjust shield frequencies to block the transmissions, but failed. When Spock suggested diverting all ship's energy to the deflectors, Uhura contacted subengineer McDuff, who programmed and readjusted power systems successfully. (TOS episode & Log Two novelization: The Lorelei Signal)