Grenski was a human serving in Starfleet in the 23rd century. By 2279 Grenski was a member of the USS Impeller's bridge crew under Captain Daniel Merkling. During an Orion attack the bridge was breached and Lieutenant Burnell pulled him down an emergency hatch saving his life. After this Grenski escorted down the blinded Captain Merkling to the engine room to help out the engineers. (TOS - New Earth novel: Wagon Train to the Stars)

USS Impeller personnel
UFP emblem image. BurnellGrenskiD. MerklingMolyneauxVerdicchio Starfleet badge image.
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