Personnel of the USS Tripoli.
A landing party from the Tripoli found Data on the Omicron Theta colony in 2338. They speculated that a signal device sensed their presence and activated the Soong-type android. Data's first memory was opening his eyes and looking into theirs. (TNG: "Datalore") Data later explained to Worf that after he was first activated by the crew of the USS Tripoli, he was told that he was "nothing more than a sophisticated machine with Human form." (TNG: "Rightful Heir")